Dienstag, 10.10.2023

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Dienstag, 10.10.2023

Für mehr Informationen öffnen Sie unten stehendes Dokument:

Dienstag, 10.10.2023

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Dienstag, 10.10.2023

Fracture imaging

The workshop combines an overview of the physics behind fracture initiation and propagation in brittle materials, with practical examples of the use of microseismic and acoustic monitoring for the imaging of the fracture process. The examples include laboratory rock deformation tests, hydraulic reservoir stimulation in the field and fracturing associated to caving in mining. Passive and active methods will be examined, with examples at reservoir and laboratory test scales. The workshop will cover the following points:

• Principles of fracture initiation and propagation
• Fractures and seismicity
• Passive imaging of fractures
• Monitoring fracture interaction and coalescence
• Seismic source parameters
• Source mechanism: fault plane solution and moment tensor
• Active surveys: deformation and fracturing imaging

Participants will be provided with tutorials covering the topics presented in the workshop and a 1-week licence of our seismic processing software to practice and navigate through the examples of monitoring of fracturing processes at field and laboratory scales.

Dienstag, 10.10.2023

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Dienstag, 10.10.2023

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Dienstag, 10.10.2023

Aim of the workshop: To sustain the contribution of the mineral industry to the world’s economy, mining activities should take place beyond a 2,000 m depth. Violent and uncontrolled failure of rocks in deep mines is a severe threat to this goal. This workshop aims to present recent research in the area of deep mining and to facilitate discussions to exchange knowledge from research to practice. It will discuss Rock behavior and its failure in deep underground openings.

For more information, open the document below:

Dienstag, 10.10.2023

Workshop title:
•    On the practical use of PLAXIS for underground excavation in rock material – Application to a real study

Presenters:          
•    Dr. Richard Witasse - Principal Application Engineer, Seequent, The Netherlands
•    Dr. Jean-Pierre Janin -  Head of Geotechnical Unit and Underground Works, Lombardi, France

Program:

1-    Presentation (45 min): PLAXIS modelling features for underground excavation in rock 
•    Continuous vs Discontinuous model: PLAXIS domain of relevance
•    Reinforcement elements: Cables, bolts, and shotcrete
•    Constitutive models: Mohr-Coulomb, Hoek-Brown, and Jointed Rock

2-    Hand-on exercise/demo (60 min): Model set-up for 2D horse-shoe tunnel construction in reinforced rock mass – Comparison with a reference solution

3-    Presentation (45 min): Application to a real study of a tunnel in squeezing rock
•    Presentation of the “squeezing” behaviour 
•    Design challenges and modelling strategy: from empirical solutions to numerical models
•    Creep modelling with PLAXIS: The Norton-Creep Mohr-coulomb model at a glance

4-    Hand-on exercise/demo (60 min): Consideration of creep deformation in deep underground excavations in squeezing rock

Dienstag, 10.10.2023

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Dienstag, 10.10.2023

This workshop provides valuable input on rock mechanics for space and building the basis for discussion for future space settlement. It will be structured two-fold:

10:30 -12:30 (Part 1)

Presentations of international experts in the field if rock mechanics for extra-planetary bodies, also including an update on the activities of the ISRM commission on Planetary Rock Mechanics.

The speakers are (detailed CVs can be found in he accompanying document):

Serkan Saydam (UNSW), Lead of the commission: Update on the Commission of Planetary Rock Mechanics – The New Subdiscipline of Rock Mechanics and Engineering

Ömer Aydan, University of Ryukyus, Japan: Some attempts for inferring the mechanical properties of rocks and discontinuities in Mars

Daisuka Asahina, Geological survey of Japan: Evaluation of the geometric distribution of Mars faults using satellite data

Philipp Hartlieb, Montanuniversitaet Leoben, Austria: The need for infrastructure of space settlements and the rock mechanical challenges

Joung Oh, UNSW, tbd

13:30-15:30 (Part 2)

Workshop and discussion on the following items:

 a.  Why Rock Mechanics have a role in Space Colonisation and SRU

 b.  Extreme environment conditions (temp, radiation, vacuum, …), parameters, challenges…

     i.  How can we do the testing/analysis (models) in these conditions

     ii.  What can we learn from existing knowledge and industry practices…

     iii.  Potential technology transfer opportunities from the industry

 c.  The Need – colonisation/ISRU, infrastructure construction, materials handling… what do we actually need

     i.  Short/Long term infrastructure and materials handling plans

how to develop standards

      ii.  Wrap-up and conclusions further steps

Dienstag, 10.10.2023

This hands-on short course covers:
Numerical modeling of complex, non-linear, coupled rock engineering problems
Simulation of rock fracture and fragmentation in 2D and 3D
Coupled THM effects
Rock support
Fundamental principles of the state-of-the-art Irazu finite-discrete element (FDEM) software
Hands-on Irazu tutorials

Get a free full-featured demo version of Geomechanica’s flagship Irazu software!

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Dienstag, 10.10.2023

Schedule:

1:00 pm

Welcoming the participants and introduction to the workshop
Sven Hoiser, TPH Bausysteme, Norderstedt

1:15 pm

Principles and selection of suitable injection materials for the sealing and consolidation of soils and rocks
Sven Hoiser, Head of Sales, TPH Bausysteme Austria, Zwettl

1:45 pm

New impact predictions and numerical calculation models for the sealing and consolidation of rock and soil
Prof. Dr.-Ing. Conrad Boley, Boley Geotechnik GmbH, Munich

2:30pm

Silicate foam injections for resource-efficient soil improvement in loose soil and rock
Johannes Jessen, M.Sc.; Centre for Geotechnical Engineering, Technical University of Munich
Prof. Dr.-Ing. Jochen Fillibeck; Centre for Geotechnical Engineering, Technical University of Munich

3:15pm

From Cement Pastes to Acrylate Gels – Grouting Works for Tunnels and Dams: Theory and Application
Prof. Dr.-Ing. Walter Wittke; WBI GmbH, Weinheim Dr.-Ing. Martin Wittke; WBI GmbH, Weinheim Dipl.-Ing. Dieter Schmitt, WBI GmbH, Weinheim

4:15pm

Are building contracts in dire need of an injection?
Dipl.-Ing. Ignaz Reichl, Associate Director, Turner & Townsend, Vienna

5:00pm

Design and execution of grouting works in the sphere of changed ground conditions
Dipl.-Ing. Hannes Gamsjäger, Turner & Townsend, Vienna

5:30pm

Open discussion

5:30pm

Welcome Reception at TPH booth, Congress venue, 1st floor

Dienstag, 10.10.2023

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Montag, 09.10.2023

Short course by the ISRM commission on rock grouting

A. Fransson

Hydrogeology and grouting

Understanding the project site for sustainable underground structures

An integrated approach to tunneling, hydrogeology and grouting

Water loss and grout take guidance to grout design and monitoring

J. Lopez Molina

Design methodologies for dam grouting

Hydrogeological zonation and identification of seepage vulnerable areas

Grouting results assessment at different scales

Design adjustments and implementation using the observational method

M. El Tani

Refusal and the minimal flow criterion

Grouting rock fractures

Flow rate limit and running limit

Implementation into the Swedish design, GIN and Amenability theory

*** ORAL PRESENTATIONS ***

(The contributions listed below are NOT in the chronological order of presentation.)

Advancements in drillability prediction for conventional hard rock drill and blast tunnelling – implementing automation into the equation

Tanja SATTLER (1,2), Kurosch THURO (2)

1: Baugeologisches Büro Bauer GmbH, Germany

2: Technical University of Munich (TUM), Germany

Challenges faced and mitigation measures adopted in construction of head race tunnel of Kameng hydro electric project (600 MW), Arunachal Pradesh, India

Rajanish RANJAN, Girish KALITA

all: NEEPCO, India

Design and Construction of the Montreal Largest Transit System

Verya NASRI

AECOM, New York, United States of America

Hard Rock Caverns with low overburden in urban environment – a case study

Manuel BODE (1), Magdalena SALLINGER (1), Paolo ZANANDREA (2), Thomas MARCHER (1)

1: SKAVA Consulting ZT GmbH, Austria

2: Ingenieurgemeinschaft GMK, Italy

The Blue Line Jerusalem LRT Underground Section – Public Transport in a challenging Project environment

Anton KALTENBÖCK, Martin PURUCKER, Bernhard STACHERL

all: Geoconsult ZT GmbH, Puch bei Hallein, Austria

Semmering Base Tunnel (SBT) - current state of the project

Gerhard GOBIET, Gernot NIPITSCH, Oliver Kai WAGNER

all: ÖBB Infrastruktur AG, Austria

Performance of different diameter Double Shield TBMs: experiences from the excavation of exploratory tunnel and main tubes of the Italian lot Mules 2-3 – Brenner Base Tunnel

Harald EGGER (1), Marco Giuseppe FODERÀ (1), Gianluca LIUZZI (1), Antonio SPAZIANI (1), Antonio VOZA (1), Daniela BOLDINI (2)

1: Galleria di Base del Brennero – Brenner Basistunnel BBT-SE

2: Sapienza University of Rome, Italy

Tunnelling in Slovenian Dinaric karst: challenges and solutions

Vojkan JOVIČIĆ (1), Boštjan VOLK (2), Gregor VESEL (2), Jože RATEJ (2), Markus SCHMIDT (3)

1: Faculty of Civil and Geodetic Engineering, University of Ljubljana, Slovenia

2: IRGO, Slovenia

3: Boratec, Germany

PU grouting and sealing measures on the Kramer Tunnel

Johannes JESSEN (1), Jochen FILLIBECK (1), Florian ZAHLER (2), Raphael ZUBER (2)

1: Technical University of Munich, Munich, Germany

2: Weilheim State Building Authority, Weilheim, Germany

Stability issues associated with the construction of underground caverns of Super Dordi Hydropower Project, Nepal

Sailesh ADHIKARI (1,2), Krishna Kanta PANTHI (1), Chhatra Bahadur BASNET (2)

1: Norwegian University of Science and Technology, Norway

2: Pashchimanchal Campus, Tribhuvan University, Nepal

SEMMERING BASE TUNNEL – Geotechnical challenges at crossing a fault system in combination with high water pressure

Mario HEIN (1), Zafer EKICI (2), Christine PEINTNER (2), Robert HOLZER (1), Thomas HOFMANN (3)

1: Geoconsult Wien ZT GmbH, Austria

2: IGT Geotechnik und Tunnelbau, Austria

3: ÖBB Infrastruktur AG, PL Semmering Basistunnel, Austria

50 km of Tunnels in Inner-City Areas – Rock Mechanics and Tunneling Issues in Connection with the large-scale Railway Project Stuttgart 21 – A Success Story

Walter WITTKE, Martin WITTKE, Patricia WITTKE-GATTERMANN, Bettina WITTKE-SCHMITT

all: WBI GmbH, Germany

Brenner Base Tunnel: three DS-TBMs excavating in parallel under the Alps in Italy – Findings, difficulties and achievements from a geological-geotechnical point of view

Stefan SKUK, Harald EGGER, Emanuele BARNABEI, Umberto Marco CONTI, Giuseppe FODERÀ, Gianluca LIUZZI, Gianluca MAGGIO, Davide RENGHI, Antonio SPAZIANI, Antonio VOZA

all: BBT Brenner Base Tunnel, Italy

Soil-structure interaction of preliminary deformable lining for conventional tunnel in squeezing conditions using HiDSte elements

Lorenzo BATOCCHIONI, Valeria GONZALEZ RODRIGUEZ, Salvatore MILIZIANO

all: Sapienza University of Rome, Italy

Collapse mechanism and treatment technology of large-span soft rock highway tunnel

Shikang QIN (1), Chen XU (2,3), Xichen LI (4), Yabin HUANG (5), Qing YAO (2)

1: College of Civil Engineering, Tongji University, Shanghai, China

2: Institute of Rock Mechanics, Ningbo university, P. R. China

3: Ningbo Key Laboratory of Energy Geostructure, Ningbo, China

4: Shanghai Giant Energy Technology Co., Ltd., Shanghai, China

5: The 4th Construction Co. Ltd. of China 15th Corporation, P. R. China

Pandoh Highway Tunnels in Indian Himalaya - a rock mechanical challenge in design and construction

Andreas GORICKI (1), Vipin PARIHAR (2)

1: 3G Gruppe Geotechnik Graz ZT GmbH, Austria

2: Afcons Infrastructure Limited, India

Burgenland’s first tunnel takes its tribute – geotechnical retrospective of a tunnel collapse

Thomas PILGERSTORFER (1), Katharina HOFER (2), Yvonne MONSBERGER (3), Jürgen VORINGER (4)

1: Geoconsult ZT GmbH, Puch/Hallein, Austria

2: ASFiNAG Bau Management GmbH, Ansfelden, Austria

3: ASFiNAG Bau Management GmbH, Großwilfersdorf, Austria

4: Swietelsky Tunnelbau GmbH & CO KG, Salzburg, Austria

*** POSTER PRESENTATIONS ***

(The contributions listed below are NOT in the chronological order of poster presentation. NOT all of them will be presented.)

The effect of TBM tunneling on the surface and underground deformations under Montreal-Trudeau international airport (YUL) runway

Afshin ARABZADEH, Xavier DONTIGNY, Marianne DEBEL

all: NouvLR, Canada

Complex tasks to evaluate the feasibility of two railway tunnel variants in terms of tunnel construction

Joachim MICHAEL (1), Lisa WILFING (2)

1: Prof. Quick und Kollegen - Ingenieure und Geologen GmbH, Germany

2: Boley Geotechnik GmbH, Germany

The Synergetic Evaluation Model of Machine-Rock in TBM-EPB Shield Construction and its computer realization

Guangming YU (1), Penghui ZHANG (1), Qimeng SHI (1), Guanwen LIANG (1), Jun LEI (2), Xinwang YANG (1), Lijun KUANG (2), Daning WANG (3), Kovalenko1 MIKHAIL D. (4), Menshova IRINA V. (5), Kerzhaev ALEXANDER P. (6)

1: Civil engineering College, School of Civil Eengineering Qingdao University of Technology

2: China Construction Fifth Engineering Division Corp.,ltd

3: regio iT gesellschaft für informationstechnologie mbh

4: Institute of Applied Mechanics, Russian Academy of Sciences

5: Institute of Earthquake Prediction Theory and Mathematical Geophysics

6: Bauman Moscow State Technical University

Difficult Ground Conditions demand for an Observational Approach for a Powerhouse Cavern in the Himalayas

Karsten THERMANN (1), Raja Bhai SHILPAKAR (2), Bibash PARAJULI (3), Eirinaios CHRISTAKIS (1)

1: Tractebel Engineering GmbH, Germany

2: Tanahu Hydropower Ltd, NEA, Nepal

3: PowerChina Chengdu Engineering Co. Ltd, China

Theory and practice in the boulders and rock blocks blasting in urban areas applied to civil engineering activities

Lineu Azuaga AYRES DA SILVA (1), Guilherme Gianotti de ANDRADE (1), Anna Luiza Marques AYRES DA SILVA (1), Fábio ZATZ (2)

1: University of São Paulo, Brazil

2: Ayres da Silva e Associados

Design of controlled rock blasting for tunneling and tunnel portals

Lineu Azuaga AYRES DA SILVA (1), Anna Luiza Marques AYRES DA SILVA (1), Guilherme Gianotti de ANDRADE (1), Geronimo Lima RODRIGUES (2)

1: University of São Paulo, Brazil

2: Telar Engenharia e Comércio S.A.

Extensive sensitivity analysis of the Kivenlahti metro center using DEM

Oskar Leonard VAN DER WEIJ (1), Daniele MARTINELLI (2)

1: Kalliosuunnittelu Oy Rockplan Ltd, Finland

2: Politecnico di Torino, Torino, Italy

Design of mechanized underground extraction of deep-seated coal seam by continuous miner technology under massive strata and high in-situ stress

Prabhat Kumar MANDAL, Arka Jyoti DAS, Ranjan KUMAR, Subhashish TEWARI, Rana BHATTACHARJEE, Awanindra Pratap SINGH

all: CSIR-Central Institute of Mining and Fuel Research, Dhanbad, India

Study on anti-dislocation measures for railway tunnels crossing active faults in complex and dangerous mountainous areas

Lianjin TAO, Haixiang ZHANG, Zhibo JIA, Ming SHI, Zhigang WANG, Cheng SHI

all: Key Laboratory of Urban Security and Disaster Engineering of China Ministry of Education, Beijing University of Technology, People's Republic of China

A method for investigating dynamic direct shear behavior of artificial jointed rocks using CNS direct shear box and Long Bar Drop Impact (LBDI) System

Hanlim KIM (1), Gyeongjo MIN (1), Gyeonggyu KIM (1), Youngjun KIM (1), Jusuk YANG (2), Kyungjae YUN (2), Sangho CHO (1)

1: Jeonbuk National University, Korea, Jeonju, South Korea

2: Agency for Defense Development, Daejeon, South Korea

The phenomenon of tools' wear in a marble quarry: laboratory tests to evaluate the performance of conditioning as a wear preventer

Alfio DI GIOVANNI, Carmine TODARO, Simone SALTARIN, Marilena CARDU

all: Politecnico di Torino, Turin, Italy

Design Review of the Remediation Project of a Highly Weathered Open Pit Wall from a Closed Iron Ore Mine in Brazil

Jose Allan MAIA (1), Teofilo COSTA (1), Anderson FONINI (2), Felipe GOBBI (2), Ricardo MENEZES (2), Gonçalo SONAGLIO (2), Fabiano MADRID (2)

1: Vale S.A., Brazil

2: FGS Geotecnia, Brazil

Geotechnical Stope Index

Raphael Perpetuo SOARES, Joao Pedro AMARAL, Gerson Rincon RIBEIRO

all: AngloGold Ashanti, Brazil

Simulating global deformation and assuring ongoing stability in a complex multi lode room and pillar mine

Andrew SHIELS (1), Marc MPOYO (2), David BECK (3), Sevda DEHKHODA (4)

1: Glencore Copper, Brisbane, Australia

2: Kamoto Copper Company, Kolwezi, DRC

3: Beck Engineering Pty Ltd, Sydney, Australia

4: Beck Engineering Pty Ltd, Brisbane, Australia

*** ORAL PRESENTATIONS ***

(The contributions listed below are NOT in the chronological order of presentation.)

Case Histories of contractual management of geological risks

Davide MERLINI (1), Daniele STOCKER (1), Matteo FALANESCA (1), Matthias NEUENSCHWANDER (2)

1: Pini Group SA, Switzerland

2: Neuenschwander Consulting Engineers, Switzerland

Probabilistic analysis of the delivery models unit price and alliance applied at the project Gemeinschaftskraftwerk Inn with focus on the construction time

Carl Philipp FRIEDINGER (1), Klaus MITTEREGGER (2), Philip SANDER (1,3)

1: University der Bundeswehr Munich, Neubiberg, Germany

2: TIWAG-Tiroler Wasserkraft AG, Innsbruck, Austria

3: RiskConsult GmbH, Innsbruck, Austria

*** POSTER PRESENTATIONS ***

(The contributions listed below are NOT in the chronological order of poster presentation. NOT all of them will be presented.)

There are no posters in this session

*** ORAL PRESENTATIONS ***

(The contributions listed below are NOT in the chronological order of presentation.)

Informing deep geothermal reservoir rock mass properties from drilling data - experience from Krafla, Iceland

Marlene VILLENEUVE (1), Ben KENNEDY (2), Anette MORTENSEN (3), Elodie SAUBIN (2), Aliaa HAMMOUD (1)

1: Montanuniversität Leoben, Leoben, Austria

2: University of Canterbury, Christchurch, New Zealand

3: Landsvirkjun, Reykjavik, Iceland

Carbon dioxide (CO2) fracturing of volcanic rocks under geothermal conditions

Kohei TAKUMA (1), Yuto WATANABE (1), Kiyotoshi SAKAGUCHI (1), Kazumi OSATO (2), Amane TERAI (3), Noriaki WATANABE (1)

1: Tohoku University, Japan

2: Geothermal Energy Research and Development Co., Ltd. (GERD), Japan

3: Japan Organization for Metals and Energy Security (JOGMEC), Tokyo, Japan

Relationship between thermal conductivity and porosity in sedimentary soft rocks by an experimental approach

Weiren LIN (1), Osamu TADAI (2)

1: Kyoto University, Japan

2: Marin Works Japan LTD, Japan

Borehole stability in geothermal reservoirs – A combined laboratory and numerical approach

Justin MATTHEIS, Catharina DREXL, Martin POTTEN, Georg Maximilian STOCKINGER, Kurosch THURO

all: Chair of Engineering Geology, Technical University of Munich, Germany

Correlations between thermal properties and elastic wave velocities of volcanic rocks

Shuai FENG (1), Weiren LIN (1), Susumu SHIBUTANI (2), Terasu SANO (3), Nana KAMIYA (4)

1: Graduate School of Engineering, Kyoto University

2: Chi-ken Sogo Consultants Co., Ltd

3: Daigas Gas and Power Solution Co., Ltd

4: Doshisha University

Induced fracture analysis from microseismic catalogues: Salton Sea EGS case study

Juan M. REYES-MONTES

Applied Seismology Consulting, Shrewsbury, United Kingdom

*** POSTER PRESENTATIONS ***

(The contributions listed below are NOT in the chronological order of poster presentation. NOT all of them will be presented.)

Hot dry rock breaking with PDC bit under various of impact loads

Yandong YANG (1,2), Duli YAN (1), Feifei HUANG (1), Hualin LIAO (2)

1: Yan‘an University, People's Republic of China

2: China University of Petroleum (East China）

Study on the fracture propagation in geothermal during the hydraulic fracturing based on a coupled thermal-hydraulic-mechanical modeling

Heng ZHENG (1), Ersi XU (2), Jie LI (3), Jin CHEN (3)

1: Yangtze University, People's Republic of China

2: Engineering technology research institute of Southwest Oilfield company

3: Engineering technology research institute of Xinjiang Oilfield company

Influence of stress state based on hydraulic-mechanical coupling and water loading path on fault activity

Yujie ZHU (1,3), Chen XU (2,3), Yingguo HU (1), Xiaoli LIU (3), Enzhi WANG (3)

1: Key Laboratory of Geotechnical Mechanics and Engineering of Ministry of Water, Changjiang River Scientific Research Institute, Wuhan, China

2: Changjiang Institute of Survey Planning Design and Research, Wuhan, China

3: Tsinghua University, Beijing, China

Stress and seismicity related to cooling of geothermal wells

Arno ZANG (1,2), Hannes HOFMANN (1,3), Gergö HUTKA (1,2), Bakul MATHUR (1), Mauro CACACE (1), Serge SHAPIRO (4), Beau WHITNEY (5), Cedric DUVAIL (5), Ramon Secanell GALLART (5), Niels GROBBE (6), Annemarie MUNTENDAM-BOS (6)

1: German Research Centre for Geosciences GFZ, Germany

2: Institute of Geosciences, University of Potsdam, Germany

3: Institute of Applied Sciences, Technical University of Berlin, Germany

4: Institute of Geosciences, Free University of Berlin, Germany

5: Fugro NL Land BV, Groningen, The Netherlands

6: Dutch State Supervision of Mines, The Hague, The Netherlands

Design of CaO-Al2O3-SiO2-H2O hydrothermal synthesis systems for high temperature and high pressure applications

Chuangchuang WANG, Xueyu PANG, Guodong CHENG, Jiankun QIN, Huajie LIU

all: China University of Petroleum (East China), People's Republic of China

*** ORAL PRESENTATIONS ***

(The contributions listed below are NOT in the chronological order of presentation.)

An investigation of the effect of rock brittleness on rockburst prediction in seismically active mines

Alexey SHARIPOV, Amoussou ADOKO

School of Mining and Geosciences, Nazarbayev University, Kazakhstan

A numerically based geomechanics risk assessment of the cut and fill underground mining method

Kamilya OMIRZHANKYZY, Ali MORTAZAVI

School of Mining & Geosciences, Nazarbayev University, Astana, Kazakhstan

Prediction of long-term deformation and dimensioning of support in squeezing rock under high overburden

Jörg-Martin HOHBERG

IM/IUB Engineering AG, Switzerland

Assessment of energy release and redistribution on excavation instabilities for underground mining

Yang ZOU, Ping ZHANG

all: Luleå University of Technology, Sweden

An implicit numerical modeling approach for destress blasting design optimization for tunneling and mine development in high stress conditions

Ali HASHEMI, Neda DADASHZADEH, Kathy KALENCHUK

all: RockEng Inc., Canada

Origin of seismic repeaters in a deep mine: what do we learn from in-situ investigation coupling geology, geomechanics and geophysics?

Emeline LHOUMAUD (1), Yann GUNZBURGER (1), Jannes KINSCHER (2), Marianne CONIN (1)

1: GeoRessources lab, Université de Lorraine - CNRS, Mines Nancy, Campus ARTEM, BP14234, Nancy, France

2: Institut National de l’Environnement Industriel et des Risques (INERIS), Campus ARTEM CS14234, Nancy, France

18 years of monitoring pore pressure evolution during and after excavation in the Callovo-Oxfordian claystone: the main insights

Gilles ARMAND, Carlos PLUA, Minh-Ngoc VU

all: Andra, France

Novel method of multi-face destress blasting efficiency assessment

Krzysztof FUŁAWKA, Piotr MERTUSZKA, Marcin SZUMNY, Lech STOLECKI, Izabela JAŚKIEWICZ-PROĆ

all: KGHM CUPRUM Ltd. R&D Centre

Numerically simulated Rate of Energy Release and its correlation with measured seismic potency

Sevda DEHKHODA (1), David BECK (1), Vladislav LEVKOVITCH (2)

1: Beck Engineering, Australia

2: Beck Engineering, Germany

On the short-term response of Opalinus Clay to tunnelling

Linard CANTIENI (1), Alexandros N. NORDAS (2), Dennis MOROSOLI (2), Georg ANAGNOSTOU (2)

1: National Cooperative for the Disposal of Radioactive Waste (Nagra), Wettingen, Switzerland

2: ETH Zurich, Zurich, Switzerland

Displacement and energy demand imposed by rapid bulking and tunnel shape change

Fedilberto J. GONZALEZ (1), Peter K. KAISER (2), Mark S. DIEDERICHS (1)

1: Queen's University, Miller Hall, Kingston, Ontario, K7L 3N6, Canada

2: Laurentian University, Sudbury, Ontario, P3E 6H5, Canada

Unplanned ore dilution control in longhole mining using sill pillars – A case study

Tuo CHEN, Hani S. MITRI

all: McGill University, Canada

Addressing rock engineering challenges faced in the development of a novel, deep mining method

Tobias LADINIG (1,2), Patrick GAMS (1), Horst WAGNER (1), Matthias WIMMER (2), Michal GRYNIENKO (2)

1: Chair of Mining Engineering and Mineral Economics, Montanuniversität Leoben, Austria

2: Rock Engineering Kiruna Mine, LKAB, Sweden

In-situ stress measurement using non-destructive and relief methods

Zulfiqar ALI (1), Murat KARAKUS (1), Giang D. NGUYEN (1), Khalid AMROUCH (1,2), Chris CHESTER (3)

1: The University Of Adelaide,Adelaide, Australia

2: Mohammed VI Polytechnic University, Benguerir, Morocco

3: OZ Minerals, Adelaide Airport, SA 5950, Australia

Application of a new brittleness index to estimate the proneness to brittle failure of rock around a deep tunnel

Lorenzo MILAN, Monica BARBERO, Mauro BORRI-BRUNETTO

all: Politecnico di Torino, Italy

The influence of brittle failure and its impact on face stability in high-stress tunnelling conditions

Joel CHIWARA (1), Ioannis VAZAIOS (2), Chrysothemis PARASKEVOPOULOU (1)

1: University of Leeds, United Kingdom

2: Ove Arup & Partners Ltd, London, United Kingdom

Analysis of the behaviour of the Barrier Pillars and Gateroads of the deep Longwall Panel of India using the 3D Finite Element Modelling approach

Rajashekar Yadav AVULA, Sreenivasa Rao ISLAVATH

all: IIT KHARAGPUR, India

The Brown-Hoek stress-depth relation revisited

Tobias BACKERS, Simon KATTENBECK, Mandy DUDA

all: Ruhr-University Bochum, Germany

Comparison of regression and classification Machine Learning algorithms for determining excavation damage zones depths

Yousef GOLABCHI, Matthew A. PERRAS

all: York University, Canada

Numerical modelling of induced seismicity considering metre-scale stress heterogeneity in a fault damage zone

Atsushi SAINOKI

Kumamoto University, Japan

Source mechanisms of mining-induced seismicity at Kloof Gold Mine, South Africa – moment tensor analysis of ML≥1.5 events

Richard MASETHE (1), Raymond DURRHEIM (2), Musa MANZI (2)

1: Sibanyestillwaters, South Africa

2: University of the Witwatersrand, South Africa

Modulated thermal wave imaging approach to detect subsurface microcracks and their coalescence in deep mines for rock burst (strain burst) prediction

Mrityunjay JAISWAL (1), Resmi SEBASTIAN (1), Ravibabu MULAVEESALA (2)

1: Department of Civil Engineering, Indian Institute of Technology Ropar, Rupnagar, Punjab, India, Pin

2: Centre for Sensors, iNstrumentation and cyber-physical Systems Engineering (SeNSE), Indian Institute of Technology Delhi, Hauz Khas, New Delhi

*** POSTER PRESENTATIONS ***

(The contributions listed below are NOT in the chronological order of poster presentation. NOT all of them will be presented.)

Dynamic response of the rock mass where the orebody dip changes

Sanjay SINGH

Harmony Gold, South Africa

Coupled Geomechanical CFD Modelling of Goaf under Goaf Gas Drainage: Impact of Goaf Characteristics

Yuehan WANG, Guangyao SI, Joung OH

all: School of Minerals and Energy Resources Engineering, University of New South Wales, Sydney, Australia

Stability analysis of surrounding rock mass in underground powerhouse based on octree and catastrophe theory

Yuepeng SUN (1), Biao LI (2), Nuwen XU (1), Qi WANG (3), Bei JIANG (3)

1: Sichuan University, Sichuan, China

2: Southwest Petroleum University, Sichuan, China

3: China University of Mining & Technology (Beijing), Beijing, China

Application of hydraulic fracturing for destressing mining-induced stresses in underground coal mines

Hongpu KANG, Yanjun FENG, Fuqiang GAO

all: China Coal Research Institute, People's Republic of China

Experimental study of coal bursts caused by decrease of local mine stiffness

Fuqiang GAO, Guiyang YUAN, Xiangyuan PENG

all: China Coal Research Institute, People's Republic of China

Evaluation of rock stresses measured in a long water tunnel at deep depth

Tatsuya YOKOYAMA (1), Akira MITO (2)

1: Fukada Geological Institute, Tokyo, Japan

2: Shimizu corporation, Tokyo, Japan

Numerical modelling and tunneling experience of the Emergency Stop in Trens, Lots Mules 2-3 (Italy) - Brenner Base Tunnel

Davide MERLINI (1), Matteo FALANESCA (1), Gianluca BELLA (1), Antonio SPAZIANI (2), Antonio VOZA (2)

1: Pini Group SA, Switzerland

2: BBT-SE, Bolzano, Italy

Are trigger levels useful for tunnels at high rock pressure?

Max JOHN

ZT John, Austria

In situ stress evaluation according to the Drillhole detonation method, applied to the geometric design underground excavations

Miguel Angel BERROCAL

GEOMECANICA DEL PERU EIRL, Peru

Modeling uncertainty of activity duration in probabilistic time estimation of tunneling projects

Mohammad MOHAMMADI, Johan SPROSS

all: Division of Soil and Rock Mechanics, KTH Royal Institute of Technology

Coupled thermal and unloading-induced permeability of rock fractures

Tao LIN (1), Zhihong ZHAO (1), Wen MENG (2), Xingguang ZHAO (3)

1: Department of Civil Engineering, Tsinghua University, Beijing, China

2: Key Laboratory of Neotectonic Movement and Geohazard, Institute of Geomechanics, Chinese Academy of Geological Sciences, Beijing, China

3: CNNC Key Laboratory on Geological Disposal of High-level Radioactive Waste, Beijing Research Institute of Uranium Geology, Beijing, China

The implementation of ‘automatic’ polygons for relevant data selection in short-term seismic analysis

Ricardo Isidro FERREIRA, Pinkie NDABA, Richard MASETHE

all: Sibanye-Stillwater, South Africa

Rationale for the quick withdrawal of the underground workforce following (large) dynamic ground motions – how extensive should the exclusion zone be?

Ricardo Isidro FERREIRA, Richard MASETHE, Pinkie NDABA

all: Sibanye-Stillwater, South Africa

A modification of the nearest neighborhood triggering mechanism in longwall mining: do seismic events only triggered by its closest neighbors?

Xu LI, Guangyao SI, Joung OH, Ismet CANBULAT

all: UNSW, Australia

Applicability of stress release method in soft rock tunnel with high geostress

Chen XU (1,2), Lingxiao ZHENG (1), Gecheng ZHANG (1), Qing YAO (1), Shikang QIN (3)

1: Institute of Rock Mechanics, Ningbo university, P. R. China

2: Ningbo Key Laboratory of Energy Geostructure, Ningbo, China

3: College of Civil Engineering, Tongji University, Shanghai, China

A conceptual study on the prediction of destress blasting efficiency using geostatistical approaches

Tawanda ZVARIVADZA

Luleå University of Technology, Sweden

Mechanical and fracturing characteristics of defected cement mortar samples under biaxial confinements

Pengxuan JI (1), Qianbing ZHANG (1), Gisela VIEGAS (2)

1: Monash University, Melbourne, Australia

2: Newcrest Mining Limited, Melbourne, Australia

Development of failure criterion for extensile fracturing of Kannur limestone under triaxial stresses

Arpan NANDY, K Seshagiri RAO, Tanusree CHAKRABORTY

all: Indian Institute of Technology Delhi, India

Reliability of Predicting damage in hard rock mass around deep tunnels in terms of its convergence

Rodolfo Enrique CABEZAS (1), Adeline DELONCA (2)

1: SRK Consulting, Chile

2: Universidad Técnica Federico Santa María, Chile

*** ORAL PRESENTATIONS ***

(The contributions listed below are NOT in the chronological order of presentation.)

Project management in connection with a digital construction site with BIM in tunneling

David HACKER (1), Martin ZEINDL (2)

1: Dipl.-Ing. Bernd Gebauer Ingenieur GmbH, Germany

2: Landesbaudirektion Bayern

Utilizing sensor technology in drilling optimization

Jukka-Pekka UUSITALO, Tobias WENDEL-EICHHOLZ, Matleena MELASAARI

all: Sandvik Mining & Rock Solutions, Finland

Integration of Point Cloud Data for Numerical Simulations Using NURBS Surfaces

Andreas-Nizar GRANITZER (1), Franz TSCHUCHNIGG (1), Wolfgang SUMMERER (2)

1: Graz University of Technology, Graz, Austria

2: ILF Consulting Engineers Austria GmbH, Rum b. Innsbruck, Austria

Development and implementation of a sensor-supported rock bolt system for underground monitoring

Wolfgang DOLSAK (1), Mislav MIKULEC (2)

1: DSI Underground Austria GmbH, Austria

2: RHI Magnesita GmbH, Austria

Application of hybrid machine learning based quality control in daily site management

Alexander ZÖHRER (1), Vincent WINTER (1), Anika TERBUCH (2), Paul O'LEARY (2), Negin KHALILI-MOTLAGH-KASMAEI (2)

1: Keller Grundbau GesmbH, Austria

2: University of Leoben, Austria

Automatic Fracture Extraction in Laboratory Rock Sample using Deep Learning method

Jian LIU (1), Aohui OUYANG (1,3), Omar ALDAJANI (2), Zili LI (1,2), Herbert EINSTEIN (2)

1: University College Cork, Ireland

2: Massachusetts Institute of Technology

3: The European Organization for Nuclear Research (CERN)

MWD data analysis for optimization of tunnel excavation

Alla SAPRONOVA (1), Kazuo SAKAI (2), Shuntaro MIYANAGA (2), Paul Johannes UNTERLAS (1), Abdallah Ahmed Fouad Elsayed SOLIMAN (1), Thomas MARCHER (1)

1: Institute of Rock Mechanics and Tunnelling ,University of Technology Graz, Austria

2: Geotechnical Research Section, Infrastructure Technology Research Department, Taisei Advance Center of Technology, Yokohama, Japan

Comparison between manual and automated determination of discontinuity orientations in different rock mass types

Julia C. GODLEWSKA, Marc S. OGAN, Julia GALLAS, Sarah SCHUMSKI, Mandy DUDA, Tobias BACKERS

all: Ruhr-University, Bochum, Germany

Concept for Tunnel Information Modelling based work-preview and documentation during construction at Tunnel Angath

Hans EXENBERGER (1), Ines MASSIMO-KAISER (1), Hannah SALZGEBER (1), Peter KOMPOLSCHEK (2), Frédéric HEIL (3), Matthias FLORA (1)

1: AB für Baumanagement, Baubetrieb und Tunnelbau (iBT), Universität Innsbruck, Austria

2: DI Arch. Peter Kompolschek, Austria

3: ÖBB-Infrastruktur AG, Austria

The creative process for the development of an autonomous bolting arm for underground mines

Ana Raquel Sena LEITE, Hatem MRAD

all: Université du Québec en Abitibi-Témiscamingue, Canada

Generation of a Discrete Fracture Network from digital discontinuity data captured using the 3D Axis Mapping method

Josephine MORGENROTH (1), Jim HAZZARD (2), Shelby YEE (1), Davide ELMO (3)

1: RockMass Technologies, Toronto, Canada

2: Itasca Consulting Group, Inc., Minneapolis, USA

3: The University of British Columbia, Vancouver, Canada

Rock evaluation of NATM tunnel face using deep learning

Masanari NAKATA (1), Karnallisa Desmy HALIM (1), Yeboon YUN (1), Harushige KUSUMI (1), Akinobu NISHIO (2)

1: Kansai University, Osaka, Japan

2: Kinki Regional Development Bureau, Osaka, Japan

*** POSTER PRESENTATIONS ***

(The contributions listed below are NOT in the chronological order of poster presentation. NOT all of them will be presented.)

Quantitative Risk Assessment of Rock Tunnel Faces Using Stacked Deep Learning and Multi-Source Data

Mingliang ZHOU (1), Le ZHANG (2), Jiayao CHEN (3), Minglun TAN (2), Hongwei HUANG (1)

1: Tongji University, Shanghai, People's Republic of China

2: Qingdao Guoxin Jiaozhou Bay Second Submarine Tunnel Co., Ltd., Qingdao, China

3: College of Civil Engineering, Beijing Jiaotong University, Beijing, China

An example of calibrating physical parameters in a constitutive model based on machine learning framework

Yupeng CAO (1), Weiren LIN (1), Feng ZHANG (2)

1: Graduate School of Engineering, Kyoto University, Japan

2: Department of Civil Engineering, Nagoya Institute of Technology, Japan

Influence of SfM reconstruction techniques on the extraction of rock slope discontinuities

Adrián J. RIQUELME (1), José Luis PASTOR (1), Miguel CANO (1), Roberto TOMÁS (1), Antonio ABELLÁN (2)

1: University of Alicante, Spain

2: Centre de recherche sur l’environnement alpin (CREALP)

Identification of the optimal time series machine learning algorithm for the prediction of the ground subsidence with TBM machine data

Myung-Kyu SONG (1), Hyun-Koo LEE (1,2), Jae-Kyum LEE (1), Sean Seungwon LEE (1)

1: Hanyang University, Republic of Korea (South Korea)

2: AICONT, Republich of Korea (South Korea)

Introducing a new cloud computation paradigm for rock engineering problems based on XaaS Model and the proposed A4 Framework

Ali BONAKDAR

Individual private geomechanical advisor, Tehran, Islamic Republic of Iran

Deep learning-aided prediction of peak shear strength of rock fractures

Jinfan CHEN (1), Zhihong ZHAO (1), Xingguang ZHAO (2)

1: Tsinghua University, Beijing, China

2: Beijing Research Institute of Uranium Geology, Beijing, China

Deep Learning based Automatic Fracture Identification in CT Images of Rock

Chuyen Ngoc PHAM (1,2), Li ZHUANG (1,2), Sun YEOM (1), Hyu-Soung SHIN (1,2)

1: Dept. of Geo-Space Engineering, University of Science and Technology, Republic of Korea (South Korea)

2: Korea Institute of Civil Engineering and Building Technology, Republic of Korea (South Korea)

Global Unstructured Digital Image Correlation for determining strains around circular opening

Tushar BHANDARI, Debasis DEB, Chamanth Sai Reddy VEMULAPATI

all: Indian Institute of Technology, Kharagpur, India

Joint surface characterization using manual and multi-sensor core logging systems

Engin USTA, Kamran ESMAEILI

all: Mine Modeling and Analytics Lab, Department of Civil and Mineral Engineering, University of Toronto, Canada

Intelligent risk management for TBM hard rock tunnelling based on Knowledge Graph

Haojun PANG, Fei JIA, Yingcai HOU, Feipeng HUANG, Yadong XUE

all: Department of Geotechnical Engineering, College of Civil Engineering, Tongji University, Shanghai, China

Towards the development of a harmonized inventory database for decision support: automatized information extraction

Alla SAPRONOVA, Paul Johannes UNTERLASS, Vaibhav SHRINGI, Thomas MARCHER

all: Institute of Rock Mechanics and Tunnelling, Graz University of Technology, Austria

Automated and digitalized web tool for open stope design

Yerkezhan MADENOVA (1,2), Fidelis SUORINENI (1), Shuai XU (3)

1: Nazarbayev University, Astana, Kazakhstan

2: Los Alamos National Laboratory, Los Alamos, NM, USA (Current)

3: Northeastern University, Shenyang, P R China

A Machine Learning-based Microseismic Event Location and Wave Velocity Prediction

Zhansaya MAKSUT, Rakhat MEIRAMOV, Adnan YAZICI, Fidelis SUORINENI

all: Nazarbayev University, Kazakhstan

Comparison of an underground rock face 3D modeling performance: SfM-MVS with optimum photographing settings and LiDAR technology

Junsu LEEM (1), Jineon KIM (1), Jiwon CHOI (1), Jae-Joon SONG (1,2)

1: Seoul National Unviersity, Seoul, Korea

2: Research Institute of Energy and Resources

A machine learning model to estimate in-situ rock strength from borehole geophysical logs

Zizhuo XIANG, Zexin YU, Joung OH, Guangyao SI, Ismet CANBULAT

all: University of New South Wales, Australia

Comparative Analysis of CAI Estimation using Symbolic Regression and Machine Learning Approaches

Tae Young KO, Ju-Pyo HONG

all: Department of Energy and Resources Engineering, Kangwon National University, Chuncheon, Korea

Virtual learning environments for rock engineering education and training - a guideline for development, examples, and lessons learned

Mateusz JANISZEWSKI, Lauri UOTINEN, Masoud TORKAN, Mikael RINNE

all: Aalto University, Finland

Study on comparing current software for parametric modelling in Tunnel Information Modelling

Hannah SALZGEBER, Larissa SCHNEIDERBAUER, Kathrin GLAB, Matthias FLORA

all: University of Innsbruck, iBT, Austria

From prognosis Ground Model to Tender Model and Tunnel Construction Framework Plan with Tunnel Information Modelling

Ines MASSIMO-KAISER (1), Hans EXENBERGER (1), Hannah SALZGEBER (1), Hannah WERKGARNER (1), Richard LOIDL (2), Matthias FLORA (1)

1: Universität Innsbruck, Austria

2: ASFINAG Bau Management GmbH

Feature Sampling and Balancing for Detecting Rock Bolts from the LiDAR Point Clouds

Sarp SAYDAM (2,1), Chengpei XU (1), Binghao LI (1), Birgul TOPAL (1), Serkan SAYDAM (1)

1: MERE, Faculty of Engineering, University of New South Wales, Australia

2: DYWIDAG-Systems International Pty Limited, Australia

Digitalization and creep modelling for trinocular-cavern based metro station

Amanda HUANG (1), Frank LI (1), Tong Joo SIA (1), Qianbing ZHANG (2)

1: SMEC, Australia

2: Monash University, Australia

Using webcam to visually observe the mechanical behaviors of Shirahama sandstone under triaxial compression

Daisuke ASAHINA (1), Takato TAKEMURA (2), Takahisa ENDO (2), Yu TSUKURIMICHI (2), Yu AOJI (2)

1: Geological Survey of JAPAN, AIST, Japan

2: Geomechanics Lab., Department of Earth and Environmental Sciences, Nihon University

The autonomous system cycle approach in off-road industrial applications – a holistic view

Naval SINGH (1), Oscar LUNDHEDE (2)

1: ORCX AB, FORCIT Explosives, Gothenburg, Sweden

2: L-Consulting, B&R Sverige, Orebro, Sweden

*** ORAL PRESENTATIONS ***

(The contributions listed below are NOT in the chronological order of presentation.)

Block in Point Cloud Data (BLOCKinPCD): A digital characterization system for rock outcrops

Scott KIEFFER, Qian LIU

all: Graz University of Technology, Graz, Austria

Performance of the empirical method with rock mass classification systems to derive optimal rock support design in poor rock mass conditions

Jorge TERRON-ALMENARA, Charlie C. LI

all: Norwegian University of Science and Technology (NTNU), Trondheim, Norway

The impact of rock strength on the measurement of shear modulus from cavity expansion testing

Yasmin Nicole BYRNE, Robert WHITTLE

all: Cambridge Insitu, United Kingdom

Development of T-DrillPacker measurement system for groundwater inflow rate and pressure in advanced boring

Yusuke HIRATSUKA, Sou KUMAMOTO, Hajime YAMAMOTO

all: Taisei Corporation, Japan

Roughness measure of a large in situ discontinuity surface by non-contact survey

Maria Teresa CARRIERO (1), Anna Maria FERRERO (2), Maria Rita MIGLIAZZA (1), Battista TABONI (2), Gessica UMILI (2)

1: Department of Structural, Geotechnical and Building Engineering, Polytechnic of Turin, Turin, Italy

2: Department of Earth Sciences, University of Turin, Turin, Italy

Holographic mixed reality: an enhanced technology for visualizing and evaluating complex 3D geologic data

Markus KASPAR, D. Scott KIEFFER, Qian LIU

all: Graz University of Technology, Graz, Austria

Roman gold exploitation at the archeological site of Las Médulas (NW-Spain) by means of Ruina Montium: a rock and fluid mechanics perspective

Leandro R. ALEJANO (1), Elena MARTÍN (1), Ignacio PÉREZ-REY (1), Brais X. CURRÁS-REFOJOS (2), Fco. Javier SÁNCHEZ-PALENCIA (2)

1: University of Vigo, Spain

2: CSIC-CCHS - Instituto de Historia, Madrid, Spain

Acoustic Emission Characteristics of Mode I Rock Fracturing

Arthur D. DE ALWIS (1), Mehdi SERATI (1), Derek MARTIN (2), Arcady DYSKIN (3), Elena PASTERNAK (3), David J. WILLIAMS (1)

1: The University of Queensland, Australia

2: The University of Alberta, Canada

3: The University of Western Australia, Australia

Structural and Geotechnical Investigations for the Remediation of Jetties and Seawalls on Heligoland

Holger JUD (1), Dieter TRONICH (1), Gerd SIEBENBORN (2)

1: Smoltczyk & Partner, Germany

2: Wasserstraßen- und Schifffahrtsamt Elbe-Nordsee, Germany

A study on point cloud interpretation of fracture intensity and its spatial variability

Yong-Zhi HUANG, Tai-Tien WANG, Fu-Shu JENG

all: Department of Civil Engineering, National Taiwan University, Taipei, Taiwan

Physics-informed machine learning of flow and transport problems

Hongkyu YOON, Jennifer HARDING

all: Sandia National Laboratories, United States of America

Hydrogeology and grouting - a field experiment in shallow, crystalline rock

Åsa FRANSSON

Department of Earth Sciences, University of Gothenburg, Sweden

Virtual reality based uncertainty assessment of rock mass characterization of tunnel faces

Erlend SKRETTING, Georg H. ERHARTER, Jessica Ka Yi CHIU

all: Norwegian Geotechnical Institute (NGI), Norway

Visualization of Fracture Intersections from 3D X-ray Imaging

Madelyn SUMNER, Laura PYRAK-NOLTE

all: Purdue University, United States of America

Investigation of the effect of matrix on tracer transport processes in subsurface fractured reservoirs

Yuanyuan WEI, Hui WU

all: Peking University, People's Republic of China

Rapid seismic data acquisition in a TBM road tunnel excavation with segmental lining

Thomas DICKMANN (1), Jozsef HECHT-MÉNDEZ (1), Dirk KRUEGER (1), Christoph SINKOVEC (2), Christian SCHÖNLECHNER (2)

1: Amberg Technologies AG, Switzerland

2: Jäger Bau GmbH, Bludenz, Austria

Interpreting variability of uniaxial compressive strength with insights from vein microstructures

Emelie GAGNON, Jennifer J. DAY

all: Queen's University, Canada

Smart detection of limestone cavities in dense urban cities

Chao ZHANG, Wei WU

all: Nanyang Technological University, Singapore

*** POSTER PRESENTATIONS ***

(The contributions listed below are NOT in the chronological order of poster presentation. NOT all of them will be presented.)

Structural mechanisms contributing to large-scale hangingwall instabilities on the UG2 reef horizon

Aletta Gertruida HARTZENBERG (1), Daniel Francois MALAN (2)

1: SRK Consulting, Canada

2: University of Pretoria, South Africa

A review of the application of empirical methodologies for preliminary analysis of natural caves

Abdelmadjid BENRABAH, Luis JORDA BORDEHORE, Salvador SENENT DOMINGUEZ

all: Universidad Politecnica De Madrid, Spain

A 2023 perspective on Rock Mass Classification Systems

Georg H. ERHARTER (1,2), Tom F. HANSEN (1), Shengwen QI (3), Neil BAR (4), Thomas MARCHER (2)

1: Norwegian Geotechnical Institute, Oslo, Norway

2: Graz University of Technology, Institute of Rock Mechanics and Tunnelling, Graz, Austria

3: Key Laboratory of Shale Gas and Geoengineering, Institute of Geology and Geophysics, Chinese Aademy of Sciences, Beijing, China

4: Gecko Geotechnics, Cairns, Australia

Multi-scale analysis of a porous carbonate rock under triaxial conditions

Catherine DORÉ-OSSIPYAN (1,2), Jean SULEM (1), Michel BORNERT (1), Alexandre DIMANOV (2), Patrick AIMEDIEU (1), Vincent DE GREEF (2), Andrew KING (3)

1: Laboratoire Navier, Ecole de Ponts Paristech, France

2: Laboratoire de Mécanique des Solides, Institut Polytechnique de Paris, France

3: Psiche beamline, Synchrotron Soleil, Saint Aubin, France

Relations between elastic waves speeds and densities

J.C. GRESS (1), M. FERREIRA (1), R.M. FAURE (2)

1: Hydrogéotechnique, Fontaines, France

2: Ecole Nationale des Travaux Publics de l'Etat, Vaulx en Velin, France

Key Parameters and Distribution in Rock Mechanics for HLW Site Selection in Korea

Dae-Sung CHEON (1), Seungbeom CHOI (2), Won-Kyong SONG (1)

1: Korea Institute of Geoscience and Mineral Resources, Republic of Korea (South Korea)

2: Korea Atomic Energy Research Institute,  Republic of Korea (South Korea)

One-dimensional consolidation properties of sedimentary soft rocks from the Boso Peninsula, central Japan using a constant strain-rate loading system

Nana KAMIYA, Weiren LIN

all: Kyoto University, Japan

Assessing Intact Rock Properties for the Salang Highway Tunnel Upgrade Route Selection Study

Edward Alan BUTTON

ARUP Pft. Ltd., Australia

The use of dynamic moduli logging in large-scale geotechnical modelling

Irmina PÖSCHL (1), Walter FREI (2)

1: iC consulenten ZT GmbH, Austria

2: GeoExpert AG, Switzerland

Simple and multiple regression study of physical-mechanical properties of ignimbrites

Jose Antonio VALIDO GARCÍA (1), Luis Enrique HERNÁNDEZ GUTIÉRREZ (2,3), José Miguel CÁCERES ALVARADO (1), Carlos Javier PÉREZ GONZÁLEZ (4)

1: Instituto Universitario de Materiales y Nanotecnología. Departamento de Ingeniería Industrial, Universidad de La Laguna, La Laguna, Spain

2: Consejería de Obras Públicas, Transportes y Vivienda. Gobierno de Canarias, Santa Cruz de Tenerife, Spain

3: Instituto Volcanológico de Canarias” (INVOLCAN), Tenerife, Canary Islands, Spain

4: Departamento de Matemáticas, Estadística e Investigación Operativa, Universidad de La Laguna, La Laguna, Spain

Application of the point counting technique for estimating the VBP of geotechnically complex formations (bimrocks/bimsoils)

Maria Lia NAPOLI (1), Lorenzo MILAN (1), Monica BARBERO (1), Edmund MEDLEY (2)

1: Politecnico di Torino, Italy

2: Terraphase Engineering, Oakland, CA, U.S.A

Rock mass characterization during the construction of a twin-tube motorway tunnel in Hungary

Gabor SOMODI (1), János BORSODY (2), Ágnes KRUPA (3), Krisztián PETRIK (1), Balázs VÁSÁRHELYI (1)

1: Budapest University of Technology and Economics, Hungary

2: Hidro-Duna Ltd.

3: Mecsekérc Plc.

The use of 3D digital implicit geological models on slope stability evaluation

Daniel PRADO AZEVEDO (1), Eduardo Antonio GOMES MARQUES (2)

1: Universidade Federal do Pará, Brazil

2: Universidade Federal de Viçosa, Brazil

Shear strength characterization of a natural rock joint developed in Peridotite deposits

Abhiram Kumar VERMA, Binay Kumar SAW

all: Indian Institute of Technology Kharagpur, India

Characteristics of hydro-magnesite of Salda Lake (Türkiye) and their implications on rocks of Jezerro Crater in Mars

Halil KUMSAR (1), Ömer AYDAN (2), Hitoshi MATSUBARA (2), Kouki MORI (2)

1: Pamukkale University, Turkey

2: University of the Ryukyus, Japan

Mitigating the rock fall and rockburst risk in South African gold and platinum mines through advanced knowledge of the ore body

Michelle PIENAAR (1), Raymond DURRHEIM (2), Musa MANZI (2), Glen NWAILA (2), Hennie GROBLER (3), Thabang KGARUME (4), Dean PRETORIUS (4), Michael VAN SCHOOR (4), Abrie OBERHOLSTER (5)

1: Mandela Mining Precinct, South Africa

2: University of the Witwatersrand, South Africa

3: University of Johannesburg, South Africa

4: CSIR, South Africa

5: University of Pretoria, South Africa

Using borehole breakout data to constrain the in situ stress tensor

Junxiong YANG, Sebastian D. GOODFELLOW, John P. HARRISON

all: University of Toronto, Toronto, Canada

Mapping of faults in underground mine by Sub Surface Profiling technology

Jayeeta DEY (1), Sujit ROY (1), Abdul MATIN (2)

1: SRK Mining Services (India) Private Limited, Kolkata, India

2: University of Calcutta, Kolkata, India

Understanding the geological and geotechnical drill core logging process – key to success

Johannes HORNER (1), Jennifer Andrea BETANCOURT (2)

1: recon-struct geologic consulting GmbH, Hallein, Austria

2: Geologist, Bogotá, Colombia

Pavement failure and flooding of tunnel in limestone geology

Hong-Gyu LEE

Oriental Consultants Global, Tokyo, Japan

Diagnosis of bench stability conditions in an iron ore open pit in the Quadrilátero Ferrífero/Minas Gerais/Brazil

Camila Broetto MILLI (1), Alberto Ferreira AMARAL (3), Ana Paula DAHER (2), Marcos NASCIMENTO (3), Silas Santos SALGADO (3), Daniel Chaves dos SANTOS (3)

1: Universidade Federal de Ouro Preto, Ouro Preto, Brazil

2: Universidade Federal de Minas Gerais, Belo Horizonte, Brazil

3: DF+ Engenharia, Belo Horizonte, Brazil

Monitoring damage evolution in a tectonically faulted clay shale — an experiment of the Mont Terri URL

Martin ZIEGLER (1,4), Markus FURCHE (2), Thies BEILECKE (2), Thomas BURSCHIL (2), Anne OBERMANN (3), Qinghua LEI (4), Chenxi ZHAO (4), Simon LOEW (4)

1: Swiss Federal Office of Topography (swisstopo)

2: German Federal Institute for Geosciences and Natural Resources (BGR)

3: Swiss Seismological Service (SED)

4: Department of Earth Sciences, ETH Zurich (ETHZ)

Geotechnical parameters prediction from geophysical logging data using supervised learning methods

Gabriela Buitrago FRAINZ, Gustavo Vinicius GOUVEIA

all: Vale, Brazil

Applications of the Structure from Motion photogrammetric technique to solve geotechnical problems at different scales

Ramiro GARCÍA-LUNA, Salvador SENENT, Rafael JIMENEZ

all: E.T.S.I. de Caminos, Canales y Puertos, Universidad Politécnica de Madrid

*** ORAL PRESENTATIONS ***

(The contributions listed below are NOT in the chronological order of presentation.)

System of highway slope disaster information collection, integration, simulation and judgement

Chia-Chi CHIU (1), Wen-Jie SHIU (2), Ching-Fang LEE (2), Meng-Chia WENG (3), Che-Ming YANG (4)

1: National Taipei University of Technology, Taiwan

2: Sinotech Engineering Consultants Inc., Taipei, Taiwan

3: National Yang Ming Chiao Tung University, Hsinchu, Taiwan

4: National United University, Miaoli, Taiwan

Instability phenomena affecting the cultural heritage cave of Antro della Sibilla (Cuma, Italy)

Daniele SPIZZICHINO (2), Paolo Maria GUARINO (2), Gabriele LEONI (2), Milena DILETTO (1), Edoardo LUSINI (1), Fabio PAGANO (3), Marida SALVATORI (3), Daniela BOLDINI (4)

1: University of Bologna, Italy

2: ISPRA, Geological Survey of Italy

3: Parco Archeologico dei Campi Flegrei, Pozzuoli (Na), Italy

4: Sapienza University of Rome, Italy

Development of a double-corrosion-protected self-drilling micropile for the foundation of rockfall protection structures

Matthias J. REBHAN (1), Hans-Peter DAXER (1), Markus SCHUCH (2), Franz TSCHUCHNIGG (1), Roman MARTE (1)

1: Graz University of Technology, Austria

2: ÖBB Infrastruktur AG, Austria

Numerical analysis of rockfall fragmentation mechanism

Jian HUANG, Jingqing YUAN, Jianhong LIAO

all: State Key Laboratory of Geohazard Prevention and Geoenvironment Protection,  People's Republic of China

Effect of shape on the survival probability of rock replicas during free fall tests

Olivier BUZZI, Davide GUCCIONE

all: Priority Research Centre for Geotechnical Science and Engineering, The University of Newcastle, Australia

10 years of thermo-mechanical monitoring of rock columns - les chandelles de l’Escalette, France

Muriel GASC-BARBIER (1), Véronique MERRIEN-SOUKATCHOFF (2), Jean-Luc GENOIS (1), Charly MOUGIN (1), Pierre AZÉMARD (1)

1: cerema, France

2: le Cnam, France

Fracture characteristics obtained from core observations and image logs in a borehole drilled through an active fault zone

Susumu SHIBUTANI (1), Weiren LIN (2), Koichiro SADO (1)

1: Chi-ken Sogo Consultants Co., Ltd., Japan

2: Graduate School of Engineering, Kyoto University, Japan

Characteristics of reinforcement for earthquake resistance in mountain tunnel

Kosuke KAWATA (1), Minaho FUKUSHIMA (1), Akira MATSUOKA (1), Atsushi KUSAKA (2), Nobuharu ISAGO (1)

1: Tokyo Metropolitan University, Japan

2: Public Works Research Institute, Japan

Rockfall instability on high granitic domes: Stawamus Chief, B.C., Canada

Benjamin COUGHLAN (1), Christian SAMPALEANU (2), Glyn WILLIAMS-JONES (1), Doug STEAD (1)

1: Simon Fraser University, Canada

2: Klohn Crippen Berger

Impact of climate change on the collapse of shallow mines – feedback from France

Nathalie CONIL (1), Clara MAGHAMI (2), Marwan ALHEIB (1), Philippe GOMBERT (1)

1: Ineris, France

2: Ecole des Mines

Closing the gap from spatio-temporal displacement monitoring to geomechanical process understanding of cascading multi-hazards caused by deep-seated gravitational slope deformations

Johannes BRANKE (1), Jan PFEIFFER (2), Thomas ZIEHER (3), Magnus BREMER (1), Martin RUTZINGER (1), Bernhard GEMS (1), Margreth KEILER (1,2), Barbara SCHNEIDER-MUNTAU (1)

1: University of Innsbruck, Innsbruck, Austria

2: Austrian Academy of Sciences, Innsbruck, Austria

3: Austrian Research Centre for Forests (BFW), Innsbruck, Austria

An approach to assess the detachment propensity of rockfall source areas: the Susceptibility Index to Failure (SIF)

Maria Lia NAPOLI (1), Monica BARBERO (1), Marta CASTELLI (1), Francesco CASTELLI (2)

1: Politecnico di Torino, Italy

2: Università degli studi di Enna KORE

Seismic resistance evaluation based on earthquake damage survey data of mountain tunnels

Katsumi KAMEMURA

Fukada Geological Institute, Japan

Predicting geomechanical hazard: utopia or reality?

Adeline DELONCA

Center for Research and Innovation in Mining (CIIM), Geomechanics Research Group, Department of Metallurgical Engineering and Materials, Universidad Técnica Federico Santa María, Santiago, Chile

Kinematic Analysis and Distinct Element Modelling of a polyphase Rock Fall

Reinhard GERSTNER (1), Christine FEY (1), Klaus VOIT (1), Erik KUSCHEL (1), Gerald VALENTIN (2), Christian ZANGERL (1)

1: Institute of Applied Geology, University of Natural Resources and Life Sciences, Vienna (BOKU), Austria

2: Landesgeologischer Dienst, Land Salzburg, Austria

The collapse of Torrione Sucai (Mt. Viso, Italy): rockfall analysis and data calibration

Giulia TORSELLO (1), Marta CASTELLI (1), Michele MORELLI (2)

1: Politecnico di Torino, Italy

2: ARPA Piemonte, Regional Agency for the Protection of the Environment, Turin, Italy

*** POSTER PRESENTATIONS ***

(The contributions listed below are NOT in the chronological order of poster presentation. NOT all of them will be presented.)

The assessment of dynamic stability of rock slopes with hexagonal jointing through shaking table tests and dynamic limiting equilibrium method (DLEM)

Ömer AYDAN (1), Yuki MURAYAMA (2), Takashi ITO (1), Naohiko TOKASHIKI (1)

1: University of the Ryukyus, Japan

2: Chuden Engineering Consultants

Evaluation of natural foliation effect on deformation characteristic and shear strength parameters of Chamoli (Uttarakhand) rock using a Triaxial system

Dinesh JAGANIYA, Manish SHAH, Usha PATEL

all: Dept. of Applied Mechanics, L D College of Engineering

Assessment of face area hangingwall stability in a hard rock bord and pillar mine

Jeane Mokgadi MATSOBANE (1), Bryan Philip WATSON (2)

1: Sibanye Stillwater, South Africa

2: The University of the Witwatersrand, South Africa

Failure mechanism and slip characteristics of landslides on loess plateau by continuous-discontinuous method: A case study

Haojie YANG (1), Gan QI (2), Jili FENG (1), Zhengyuan LIU (1), Dejian LI (1)

1: China University of Mining and Technology Beijing, People's Republic of China

2: China Institute of GeoEnvironment Monitoring

Geomechanical and hydrogeological characterization of fracture systems in Banyoles Karst caprock units, Catalunya

Aline CONCHA-DIMAS (1), Ivan FABREGAT GONZALEZ (2)

1: Institut Geològic de Catalunya. Presently: Universitat Autònoma de Barcelona, Cerdanyola del Vallès, Spain

2: Institut Cartogràfic i Geològic de Catalunya, Barcelona, Spain

Rockfall hazards – Risk assessment, benefit/cost analysis and the design of flexible rockfall protection systems

Christian BINDER, Anna FREUIS, Michael SCHREINER, Mathias SMESNIK

all: AFRY Austria GmbH, Austria

Study of the influence of anthropogenic galleries on the chalk cliff stability at Normandy region (France)

Ahmed HOSNI, Claire MYR, Bastien COLAS, Isabelle HALFON, Yannick THIERY, Karim BEN SLIMANE

all: BRGM, 3 avenue Claude Guillemin, Orléans, France

URUCUM Mine: Rockfall protection and monitoring system

Felipe GOBBI (1), Bruno DENARDIN DA ROSA (1), Dione Henrique DIAS (1), Fabio BERTUOL (1), Nataly AYUMI TOMA (1), Adoniran COELHO (2)

1: FGS Geotecnia, Brazil

2: Vale

Rockfall risk in remote but touristically developed alpine areas – a modular rockfall risk management system

Rainer KIENREICH, Alexander KLUCKNER, Thomas MARCHER

all: Institute of Rock Mechanics and Tunnelling, Graz University of Technology, Austria

Failure mechanism of the utility tunnel with flexible joints under reverse fault dislocation

Lianjin TAO, Zhigang WANG, Zhibo JIA

all: Beijing University of Technology, People's Republic of China

Development of post-mining multi-hazard assessment methodology

Hippolyte DJIZANNE (1), Marwan AL HEIB (2), Aurélien GOUZY (1), Christian FRANCK (1)

1: Ineris, Parc Technologique ALATA, BP 2, Verneuil-en-Halatte, France

2: Ineris, Campus ARTEM, Nancy, France

Experimental simulation of mass flow characteristics for evaluation of the role of flow-bed roughness

Abhijeet SINGH, Deepanshu SHIROLE

all: Indian Institute of Technology, Delhi, India

Slope stability and engineering characteristics of rock mass at the boundary of slate and schist: Study of Southern Cross-Island Highway in southeastern Taiwan

Pai-Chiao LO (1), Wei LO (2), Yong-Zhi HUANG (1), Ya-Chu CHIU (3), Tai-Tien WANG (1), Yu-Chung HSIEH (4)

1: National Taiwan University,Taipei, Taiwan

2: National Taipei University of Technology, Taipei, Taiwan

3: National Chung Hsing University,Taichung, Taiwan

4: Central Geological Survey, New Taipei, Taiwan

Event tree analysis and time-integrated reliability design approach for quantifying rockfall risk reduction

Maddalena MARCHELLI, Valerio DE BIAGI

all: Politecnico di Torino, Italy

A study case of a rockfall event in a geomorphosite from the Corumbataí Geopark Project, state of São Paulo, Brazil

João Paulo MONTICELLI, Rogerio RIBEIRO

all: São Carlos School of Engineering University of São Paulo, São Paulo, Brazil

Review and evaluation of Porosity Rate Model (PRM) for highly frost susceptible soils

Zheng GONG (1), Jang-guen LEE (1), Gyu-Hyun GO (2)

1: Future Smart Construction Research Division, Korea Institute of Civil Engineering and Building Technology, Republic of Korea (South Korea)

2: Department of Civil Engineering, Kumoh National Institute of Tech

Numerical Modelling Study of the 2016 Gyeongju Earthquake Rupture Process and Correlation with Groundwater Level Change

Jeoung Seok YOON (1,2), Anne STRADER (1), Jian ZHOU (3), Soo-Gin KIM (4), Jae-Yeol CHEONG (4)

1: DynaFrax UG, limited liability, Germany

2: Handong Global University, Korea

3: Beijing University of Technology, China

4: Korea Radioactive Waste Agency, Korea

An improved calibration and uncertainty analysis for a ground subsidence using physics-informed neural network (PINN) approach

Hyung-Mok KIM (1), Yashwanth Kumar GUJJALA (1,2), Junya INOUE (3), Dong-Woo RYU (4)

1: Sejong University, South Korea

2: Indian Institute of Technology (Indian School of Mines), India

3: The University of Tokyo, Japan

4: Korea Institute of Geoscience and Mineral Resources, South Korea

*** ORAL PRESENTATIONS ***

(The contributions listed below are NOT in the chronological order of presentation.)

Study on dynamic response characteristics of cave-type excavation of high and steep dam abutment slope

Yi LUO, Hangli GONG, Qiaoliang LI, Xinping LI

all: Wuhan University of Technology, People's Republic of China

A possible way forward to predict the peak shear strength of a natural, unfilled rock joint under concrete dams based on field data

Francisco RÍOS BAYONA (1), Fredrik JOHANSSON (2), Diego MAS IVARS (2,3), Carl-Oscar NILSSON (4)

1: Typsa AB, Department of Civil Engineering, Stockholm, Sweden

2: KTH Royal Institute of Technology, Department of Civil and Architectural Engineering, Stockholm, Sweden

3: SKB Swedish Nuclear Fuel and Waste Management Co, Solna, Sweden

4: Uniper – Sydkraft Hydropower AB, Östersund, Sweden

The material extraction for the Kühtai Dam

Steffen BAUER, Sebastian PERZLMAIER

all: TIWAG-Tiroler Wasserkraft, Innsbruck, Austria

A Block Theory approach for rock erodibility assessment incorporating 3D high-resolution site characterization data

Mike GEORGE

BGC Engineering, United States of America

275 m high Yusufeli arch dam – Geotechnical modelling during construction

Johannes KLEBERGER, Irmina PÖSCHL, Jonas WEIL

all: iC consulenten Ziviltechniker GesmbH, Austria

Evaluation of the effect of rock surface irregularities on energy gradient in unlined dam spillways

Yavar JALILI KASHTIBAN (1), Ali SAEIDI (1), Marie-Isabelle FARINAS (1), Javier PATARROYO (2)

1: University of Quebec at Chicoutimi, Canada

2: Hydro-Quebec, Canada

*** POSTER PRESENTATIONS ***

(The contributions listed below are NOT in the chronological order of poster presentation. NOT all of them will be presented.)

Deformation behavior analysis of an arch dam during initial impoundment based on clustering and panel data regression

Rujiu ZHANG (1), Wenyu ZHUANG (1), Jianjun XU (2), Liang YIN (2), Haining WEI (2), Yaoru LIU (1)

1: Tsinghua University

2: POWERCHINA Huadong Engineering Corporation Limted.

HEPP cavern Kühtai, excavation design and construction experience

Rupert STEIGER (1), Peter WETZLINGER (2)

1: TIWAG, Austria

2: Swietelsky, Austria

Challenges associated with the construction of vertical and inclined shafts in the Himalayan Region

Tek Bahadur KATUWAL (1,2), Krishna Kanta PANTHI (1), Chhatra Bahadur BASNET (2)

1: Norwegian University of Science and Technology, Trondheim, Norway

2: Tribhuvan University, IOE, Pashchimanchal Campus, Pokhara, Nepal

Behavior of the Rock Foundation of a Concrete Dam Affected by Alkali-Aggregate Reactivity

Marco QUIRION, Dolice DONTSI MAKEN

all: Hydro-Quebec, Canada

3D numerical modelling of stability of underground pumped storage hydropower (UPSH)

Yuxi LIU (1), Qianbing ZHANG (1), Ivan CHING (2)

1: Department of Civil Engineering, Monash University, Clayton, VIC, Australia

2: SMEC Pty. Ltd., Sydney, NSW, Australia

Experimental study of joint opening and block protrusion effects on rock mass erosion in unlined spillways

Marie-Hélène WISSE (1), Ali SAEIDI (1), Marco QUIRION (2)

1: Université du Québec à Chicoutimi, Canada

2: Hydro-Québec

*** ORAL PRESENTATIONS ***

(The contributions listed below are NOT in the chronological order of presentation.)

Influence of different support systems on drifts closure evolution in Callovo-Oxfordian claystone

Frederico LARA (1), Lina-María GUAYACÁN-CARRILLO (1), Jean SULEM (1), Jana JABER (2), Jan CORNET (2), Gilles ARMAND (2)

1: Laboratoire Navier/CERMES, Ecole des Ponts ParisTech, Université Gustave Eiffel, CNRS, Marne la Vallée, France

2: ANDRA, Meuse/Haute-Marne Underground Research Laboratory, Bure, France

Data and analytical mechanics: a new look on NATM tunnels

Raphael SCHARF (1), Bernhard PICHLER (1), Roman HEISSENBERGER (2), Bernd MORITZ (2), Christian HELLMICH (1)

1: Institute for Mechanics of Materials and Structures, TU Wien (Vienna University of Technology), Vienna, Austria

2: ÖBB - Infrastruktur AG, Streckenmanagement und Anlagenentwicklung, Fachbereich Bautechnik - Tunnelbau, Graz, Austria

Long term behaviour based on a weakness planes approach: Constitutive model and application to a Meuse/Haute-Marne (France) URL drift

Mountaka SOULEY (1), Minh-Ngoc VU (2), Gilles ARMAND (2)

1: National Institute for Industrial Environment and Risks (Ineris), France, France

2: Radioactive Waste Management Agency (Andra), France

Eighteen years of feedback on the mechanical behavior of a 500m deep shaft on the Meuse/Haute-Marne (MHM) Andra’s URL (France)

Jana JABER (1), Carlos PLUA (1), Minh-Ngoc VU (2), Gilles ARMAND (1), Jad ZGHONDI (1)

1: Andra, Meuse/Haute-Marne Underground Research Laboratory, France

2: Andra, Châtenay-Malabry, France

Rehabilitation of old masonry tunnels – challenges and possibilities

Tilman SANDNER, Claas MEIER, Boley CONRAD

all: Boley Geotechnik GmbH, Germany

Effects of water on the time dependent properties of rock

Kimihiro HASHIBA, Katsunori FUKUI

all: The University of Tokyo, Tokyo, Japan

Numerical simulation of nuclide transport at the underground repository scale subjected to thermal loading

Jintong ZHANG (1), Zhihong ZHAO (1), Junyu CHEN (1), Xingguang ZHAO (2), Ju WANG (2)

1: Tsinghua University, Beijing, China

2: Beijing Research Institute of Uranium Geology, Beijing, China

Investigating the impact of viscoelastic material models for accurate stress estimation in precast concrete tunnel segments

Ali RAZGORDANISHARAHI (1), Maximilian SORGNER (1), Adolf Bernd MORITZ (2), Thomas PILGERSTORFER (3), Bernhard L.A. PICHLER (1), Christian HELLMICH (1)

1: Institute for Mechanics of Materials and Structures, TU Wien (Vienna University of Technology), Vienna, Austria

2: OeBB-Infrastructure AG, Graz, Austria

3: Geoconsult ZT GmbH, Austria

Time-dependency and long-term strength of rocks in brittle underground environments – from the lab results to numerical continuum analysis

Chrysothemis PARASKEVOPOULOU (1), James INNOCENTE (2), Mark DIEDERICHS (2)

1: University of Leeds, United Kingdom

2: Queen's University, Canada

Evolution of spalling-inducing fractures around a deep geological repository for nuclear waste during glaciations and their effect on the long-term repository stability

M. Cristina SACEANU (1), Adriana PALUSZNY (1), Robert W. ZIMMERMAN (1), Diego MAS IVARS (2,3)

1: Imperial College London, London, SW7 2AZ, United Kingdom

2: Swedish Nuclear Fuel and Waste Management Company (SKB), Solna, Sweden

3: Royal Institute of Technology (KTH), Stockholm, Sweden

Crush Pillars’ Behaviour at Intermediate Depth on Merensky Reef

Hlomani Glen MTHOMBENI, Shane K. DURAPRAJ, Richard T. MASETHE

all: Sibanye Stillwater, South Africa

Dissolution and precipitation processes governing the hydration heat development in tunnel cements: Green’s function-based estimation of heat release in modified calorimetric tests

Hermann HÖLD, Bernhard PICHLER, Helmut RECHBERGER, Philipp ASCHENBRENNER, Christian HELLMICH

all: TU Wien (Vienna University of Technology), Vienna, Austria

*** POSTER PRESENTATIONS ***

(The contributions listed below are NOT in the chronological order of poster presentation. NOT all of them will be presented.)

Self-sealing experiments with water and gas injection on Callovo-Oxfordian claystone under X-ray tomography

Mensan Dèlwindé Gildas Cedric AGBOLI, Dragan GRGIC, Albert GIRAUD

all: Université de Lorraine, CNRS, Laboratoire GeoRessources, Nancy, France

Creep induced tunnel collapse during construction – a case study of a mountain railway tunnel in Taiwan

Wen-Jie SHIU (1), Fu-Yuan HSIAO (1), Cheng-Hsien TSAI (1), Shih-Hui WANG (2)

1: Sinotech, Taiwan

2: Raito Engineering Corp., Taiwan

Coupled thermo-hydraulic-mechanical analysis for a high efficiency high-level radioactive waste repository in South Korea

Kwang-Il KIM, Changsoo LEE, Dong-Keun CHO

all: Korea Atomic Energy Research Insitute, Republic of Korea (South Korea)

Geological control on the operational behavior of Masjed -e Soleyman Dam, Iran

Arash BARJASTEH

Khuzestan Water & Power Authority (KWPA), Islamic Republic of Iran

Experimental study and damage-mechanism-based modelling of creep behavior of fractured granite

Chunping WANG (1), Liang CHEN (1), Jian LIU (1), Xingguang ZHAO (1), Ju WANG (1), Jianfeng LIU (2)

1: Beijing Research Institute of Uranium Geology, Beijing, China

2: Sichuan University, Chengdu, China

Consideration to evaluate maintenance process for utilization of non-supported underground quarries

Rui HUANG (1,2), Takafumi SEIKI (1), Qinxi DONG (3), Shizuo NOGUCHI (4), Takeshi OHMURA (4)

1: Utsunomiya University, Japan

2: Xihua University, China

3: Hainan University, China

4: Kawasaki Geological Engineering Co. Ltd., Japan

Design of underground structures and support systems for extraction of inclined coal seam

Arka Jyoti DAS, Prabhat Kumar MANDAL, Ranjan KUMAR

all: CSIR-Central Institute of Mining and Fuel Research, Dhanbad, India

Laboratory measurement by geotechnical centrifuge of long-term behavior in a model of vertical emplacement concept with tunnel at a deep geological disposal repository

Soshi NISHIMOTO

Central Research Institute of Electric Power Industry

*** ORAL PRESENTATIONS ***

(The contributions listed below are NOT in the chronological order of presentation.)

Development of tunnel pre-displacement measurement method by fiber optic sensing

Kazuo SAKAI (1), Toshifumi AKAKI (1), Yoshimi OHNISHI (1), Shigeru TANAKA (2), Tomonori HORIDOME (2)

1: Taisei Corporation, Japan

2: Toa Elmes, Japan

Next-generation high-resolution borehole tensor strainmeters for the measurement of six strain-components based on fully automated interferometric displacement sensors

Jiayong TIAN (1), Kanghua ZHANG (2), Jiashu LOU (1)

1: National Institute of Natural Hazards, MEMC, P.R.China

2: Tianjin University, P.R.China

Monitoring and analysis of the behavior of the Salzburg-Clay during the jet grouting works for the S-LINK project

Albert GREINMEISTER (1), Johann GOLSER (2), Alexander RADINGER (2), Gernot JEDLITSCHKA (3), Manfred EDER (4), Micheal FELDINGER (5), Franz RATHMAIR (6), Erich SAURER (7)

1: Salzburger Regionalstadtbahn Projektgesellschaft mbh, Salzburg, Austria

2: Geodata Surveying and Monitoring Group, Leoben, Austria

3: JV TSS – Team Schiene Salzburg, Puch, Austria (Geoconsult ZT GmbH)

4: JV TSS – Team Schiene Salzburg, Puch, Austria (Laabmayr ZT GmbH)

5: JV TSS – Team Schiene Salzburg, Puch, Austria (IGT Geotechnik und Tunnelbau ZT GmbH)

6: Keller Grundbau GmbH, Linz, Austria

7: Skava consulting ZT-GmbH, Salzburg, Austria

Sinkholes and underground mining activities: the key role of monitoring for the hazard assessment and mitigation

Bartolomeo VIGNA, Adriano FIORUCCI, Federico VAGNON, Marco BARALE

all: Politecnico di Torino, Italy

Strategy and application of slope monitoring over dam basin in regular periods and during emergencies using SAR and GNSS

Shoji YUKIKO (1), Kikuchi TERUYUKI (2), Koike HITOSHI (3), Shimizu NORIKAZU (4)

1: Electric Power Development Co., Ltd., Chigasaki, Japan

2: J-POWER Design Co., Ltd., Chiyoda, Japan

3: J-POWER Business Service Corporation, Chuo, Japan

4: Yamaguchi University, Ube, Japan

Regression analysis of slope instabilities evolution for time of failure estimation

Alberto MICHELINI

IDS GeoRadar, Italy

Long-term monitoring of Austrian railway tunnels – A next step forward

Adolf Bernd MORITZ (1), Johannes FLECKL (1), Werner LIENHART (2), Johann GOLSER (3), Thomas PILGERSTORFER (4)

1: ÖBB-Infrastruktur AG, Graz, Austria

2: Graz University of Technology, Austria

3: Geodata, Leoben, Austria

4: Geoconsult ZT GmbH, Puch bei Hallein, Austria

Use of combined monitoring remote sensing techniques for the study of active fractures in a remote area: Case of Cima Del Simano rockslide

Charlotte WOLFF (1), Tiggi CHOANJI (1), Marc-Henri DERRON (1), Li FEI (1), Michel JABOYEDOFF (1), Andrea PEDRAZZINI (2), Carlo RIVOLTA (3)

1: ISTE - University of Lausanne, Lausanne, Switzerland

2: Sezione forestale- Repubblica e Cantone Ticino, Bellinzona, Switzerland

3: Ellegi Srl - operational and administrative headquarters, Milano, Italy

Rockfall simulation and identification their sources locations along Massive external crystalline in Alps zone using LiDAR and Panorama Images: Case of La Grave, France

Tiggi CHOANJI (1,2), Li FEI (1), Charlotte WOLFF (1), Franck BOURRIER (3), Romain GAUCHER (4), Kan Jean KOUAMÉ (5), Marc-Henri DERRON (1), Michel JABOYEDOFF (1)

1: Risk Group, ISTE, University of Lausanne, Geopolis – Quartier Mouline 1015, Lausanne, Switzerland

2: Department of Geological Engineering, Islamic University of Riau, Pekanbaru Riau 28284, Indonesia

3: Université Grenoble-Alpes, INRAE, ETNA, 38000 Grenoble, France

4: Service Ingénierie, Département des Hautes-Alpes, Gap, Provence-Alpes-Côte d’Azur, France

5: CURAT, Côte d’Ivoire, Bd. De l'Université, Université Félix HOUPHOUËT-BOIGNY d'Abidjan Cocody (Côte d'Ivoire)

Distributed Fiber Optic Monitoring Systems in Tunneling: Implementation from research into practice

Christoph Martin MONSBERGER (1), Fabian BUCHMAYER (1), Werner LIENHART (1,2)

1: ACI Monitoring GmbH, Austria

2: Graz University of Technology, Institute of Engineering Geodesy and Measurement Systems, Austria

*** POSTER PRESENTATIONS ***

(The contributions listed below are NOT in the chronological order of poster presentation. NOT all of them will be presented.)

Determination and validation of Longitudinal Displacement Profile by in situ measurements at the M85 motorway tunnel

Ferenc DEÁK (1,4), Ákos TÓTH (2), Tomas MÁRIK (3)

1: SeklerGeo, Hungary

2: TunnelTech Ltd., Hungary

3: Geoinspect Ltd., Cech Republic

4: BUDAPEST UNIVERSITY OF TECHNOLOGY AND ECONOMICS, Hungary

An overview of RAR application for pit slope monitoring: with a focus on spatial and temporal resolution

Sharla COETSEE (1), Priyanka NARSHAI (1), John-Philip TAYLOR (2)

1: Reutech Mining, South Africa

2: Reutech Radar Systems, South Africa

Monitoring the rock-mechanical safety of underground limestone quarries using fibre optic sensing technology

Edo NOORDERMEER (1), Roland BEKENDAM (2), Karlijn BEERS (1), Auke NACHENIUS (1), Devrez KARABACAK (1)

1: Fugro, The Netherlands

2: GeoControl

Analysis of the evolution of a reclaimed coal mining area using historical aerial photographs

Roberto SARRO (1), Juan LÓPEZ-VINIELLES (1), Adrián RIQUELME (2), Mónica MARTÍNEZ-CORBELLA (1), Juan Carlos GARCÍA-DAVALILLO (1), Augusto RODRÍGUEZ (1), José Antonio FERNANDEZ-MERODO (1), Ángela SUÁREZ-RODRÍGUEZ (1), Mario HERNÁNDEZ (1), Rosa María MATEOS (1), Mercedes FERRER (1), Joaquín MULAS (1)

1: Geological Survey of Spain (IGME-CSIC)

2: University of Alicante

Development of a non-destructive stress measurement method using distributed fiber optic sensing and geophysical techniques

Sepidehalsadat HENDI, Erik EBERHARDT, Mostafa GORJIAN

all: University of British Columbia, Canada

First experience with the newly created monitoring system of dynamics of surface changes occurring during the transition into the post-mining stage

Vlastimil KAJZAR, Eva JIRANKOVA, Petr KONICEK

all: Institute of Geonics, Czech Academy of Sciences, Czech Republic

Usage of Monitoring Data to Optimize and Validate the Geotechnical Parameters of Rock Properties in the Underground Space

Ghader SAADATI (1,2), Michael METT (2), Kontrus HEINER (2), Barbara SCHNEIDER-MUNTAU (1)

1: Unit of Geotechnical Engineering, Department of Infrastructure Engineering, University of Innsbruck, Austria

2: Dibit Messtechnik GmbH, Austria

Optimization of a large-scale slope monitoring system by the correlation between interferometric radar and geological compartmentalization

Miguel PAGANIN NETO, Elder Lucas RIBEIRO, Christiano NOGUEIRA, João Pedro DELVEAUX, Wesley de Lima SILVA, Camilla Szerman EUZEBIO

all: VALE S.A.

Geotechnical Risk Assessment and Management with Underground Controls and Monitoring System for Sill Pillar Recovery at Tüprag Efemcukuru Gold Mine

Muammer BERBER

Eldorado Gold (TUPRAG Efemcukuru Gold Mine), Turkey

A new in-situ monitoring system to determine stability of underground coal pillar subjected to dynamic loading: electrical resistance measurement system (ERMS)

İhsan ÖZKAN (1), Mehmet MESUTOĞLU (1), Mahmut Yasin ÇETINKAYA (2)

1: Konya Technical University, Konya, Turkey

2: Turkish Coal Enterprises (TKİ)-Ömerler Underground Coal Mine, Kütahya, Turkey

Low-frequency acoustic emission characteristics from meter-scale fracturing of rock-like brittle materials

June Ho PARK (1), Jin Seop KIM (2), Chang Ho HONG (2), Ji Won KIM (2), Tae Hyuk KWON (1)

1: Korea Advanced Institute of Science and Technology, Daejeon, Republic of Korea

2: Korea Atomic Energy Research Institute, Yuseong-gu, Daejeon, Republic of Korea

Monitoring long-term hydromechanical processes in swellable Opalinus Clay shale of the new Belchen tunnel (Switzerland)

Martin ZIEGLER (1), Simon LOEW (1), Arash Alimardani LAVASAN (2), Ernando SARAIVA (3)

1: Department of Earth Sciences, ETH Zurich, Switzerland

2: Faculty of Civil and Environmental Engineering, Ruhr-Universität Bochum, Germany

3: Swiss Federal Nuclear Safety Inspectorate

*** ORAL PRESENTATIONS ***

(The contributions listed below are NOT in the chronological order of presentation.)

Cutting performance evaluation of Actuated Disc Cutting by linear cutting test

Hoyoung JEONG (1), Yudhidya WICAKSANA (2), Sehun KIM (3), Seokwon JEON (3), Jeong-Gi UM (1)

1: Pukyong National University, Republic of Korea (South Korea)

2: Bandung Institute of Technology, Indonesia

3: Seoul National University, Republic of Korea (South Korea)

Compression test of TBM thrust jack for validation of bucking strength under inclined loading condition

Han-Young JEONG (1), Mun-Gyu KIM (1), Yun-Joo NAM (1), Min-Gi CHO (1), Jung-Woo CHO (1), Sung-Bo SHIM (2)

1: KITECH (Korea Institute of Industrial Technology), Republic of Korea (South Korea)

2: Kyungpook National University, Daegu, Republic of Korea

*** POSTER PRESENTATIONS ***

(The contributions listed below are NOT in the chronological order of poster presentation. NOT all of them will be presented.)

TBM penetration rate prediction using machine learning models and models’ generalization

Shengfeng HUANG, Misagh ESMAEILPOUR, Saadeldin MOSTAFA, Pooya DASTPAK, Rita SOUSA

all: Stevens Institute of Technology, United States of America

Performance validation of rock cutting-splitting method by scaled model tests and rock slope excavation

Mun-Gyu KIM (1), Han-Young JEONG (1), Joo-Young OH (1), Jung-Woo CHO (1), Sang-Hwa YU (2), Ho-Young JEONG (3)

1: KITECH (Korea Institute of Industrial Technology), Republic of Korea

2: Hochang Engineering Co., Republic of Korea

3: Pukyong University, Busan, Republic of Korea

*** ORAL PRESENTATIONS ***

(The contributions listed below are NOT in the chronological order of presentation.)

New yielding elements made of high-strength expanded polystyrene (HS-EPS)

Manuel ENTFELLNER, Helmut WANNENMACHER

all: Implenia Österreich GmbH, Austria

Reinforcement effect of deformation-controlled tunnelling supports based on three-dimensional tunnel excavation analysis

Yasuhiro YOKOTA (1,2), Kensuke DATE (1,2), Atsushi SAINOKI (3), Masako ISHII (2,4), Kazuhiko MASUMOTO (2,4), Mori UTSUNO (2)

1: KAJIMA Technical Research Institute Singapore, Singapore

2: KAJIMA Corporation, Japan

3: Kumamoto University

4: Kajima Technical Research Institute, Japan

Rational design for tunnel ground support with membranes based on the geomechanically classification of Q by Barton

Roberto LUIS (1), Rico BRÄNDLE (1), Gabriel VON RICKENBACH (1), German FISCHER (2), Sergio MARK (2)

1: Geobrugg AG

2: Geobrugg Andina SpA

Full-Scale Pullout Tests of Rock Anchors in Limestone Testing the Interfacial Bond Strengths

Bjarte GRINDHEIM (1), Charlie Chunlin LI (1), Are Håvard HØIEN (2)

1: Norwegian University of Science and Technology (NTNU), Trondheim, Norway

2: Norwegian Public Roads Administration (NPRA), Bergen, Norway

Prevention of catastrophic corrosion failure of rockbolt and cable bolt in underground coal mines

Honghao CHEN (1), Hamed Lamei RAMAND (1), Imrana KABIR (1), Onder KIMYON (1), Ren CHEN (1), Naresh KUMAR (1), Cindy GUNAWAN (3), Peter CRAIG (2), Ismet CANBULAT (1), Micheal MANEFIELD (1), Serkan SAYDAM (1)

1: University of New South Wales, Australia

2: Jennmar Australia

3: University of Technology Sydney

Research of safety-relevant natural and structural factors influencing the load-bearing capacity of rock stabilization with chemical grouts

Conrad BOLEY (1), Paul PRATTER (2), Lisa WILFING (2)

1: Institute for Soil Mechanics and Geotechnical Engineering, Bundeswehr University Munich, Germany

2: Boley Geotechnik GmbH, Munich, Germany

Microfibrillated cellulose as additive for wet-mix shotcrete

Mathias LAURAEUS (1,3), Mikael RINNE (1), Antti LAUKKANEN (2)

1: Department of Civil Engineering, Aalto University, Espoo, Finland

2: Betulium Ltd, Espoo, Finland

3: Sweco Finland Ltd, Helsinki, Finland

Blast Induced Vibrations and Strain Rate Effects in Dynamic Capacity of Underground Concrete Structures

Frederick KUHNOW

GEI Consultants

On the Expected Location of Fire-Induced Concrete Spalling

Dorna EMAMI (1), Souvik SAHA (2), Mehdi SERATI (1), Harry ASCHE (3), David J WILLIAMS (1)

1: The University of Queensland, Australia

2: University of Queensland – IIT Delhi Academy of Research, New Delhi, India

3: Aurecon, Brisbane, Australia

Influence of rock crystal structure on bond strength at the rock-shotcrete interface

Kunze LI, Hamed LAMEI RAMANDI, Chengguo ZHANG, Sahand TADBIRI, Serkan SAYDAM, Joung OH

all: University of New South Wales, Sydney, Australia

Experimental Investigations of Instrumented Fully Grouted Rock Bolts under Pull Load

Jemishkumar Vijaykumar MODI (1,2), Debasis DEB (2), Rakesh KUMAR (2)

1: Government Engineering College Palanpur

2: Indian Institute of Technology Kharagpur

Verification of design relevant parameters for new pipe umbrella support systems

Günther M. VOLKMANN

DSI Underground Austria GmbH, Austria

*** POSTER PRESENTATIONS ***

(The contributions listed below are NOT in the chronological order of poster presentation. NOT all of them will be presented.)

Modeling the rational parameters for innovative fastening systems in mine workings using composite materials

Iryna KOVALEVSKA, Volodymyr BONDARENKO, Hennadii SYMANOVYCH, Ivan SHEKA, Yevhenii TSIVKA

all: Dnipro University of Technology, Ukraine

Research on application of new combined support structures in reinforcing rocky slopes containing weak interlayers

Fei ZHAO, Zhenming SHI, Songbo YU

all: Department of Geotechnical Engineering, College of Civil Engineering, Tongji University, Shanghai, People's Republic of China

An analytical model for cable bolts considering crack propagation in grout

Danqi LI

Curtin University, Australia

Determination of tensile strength of rocks by CTC (compression-tensile load converter test)

Ana Carolina BAÊSSO (1), Euripedes do Amaral VARGAS JR. (1), Raquel Quadros VELLOSO (1), Eduardo Gomes MARQUES (2)

1: Pontifical Catholic University of Rio de Janeiro, Brazil

2: Federal University of Viçosa

*** ORAL PRESENTATIONS ***

(The contributions listed below are NOT in the chronological order of presentation.)

FDEM modelling of hydraulic fracturing in jointed rocks

Mansour SHARAFISAFA (1,2), Zeinab ALIABADIAN (1), Akira SATO (1), Luming SHEN (2)

1: Graduate School of Science and Technology, Kumamoto University, Japan

2: School of Civil Engineering, The University of Sydney, Sydney, Australia

Numerical modelling of the swelling of clayey geomaterials by a multiscale approach

Hamza MHAMDI ALAOUI, Richard GIOT, Dimitri PRÊT, Philippe COSENZA, Stephen HEDAN

all: IC2MP, Université de Poitiers, CNRS, HydrASA, Poitiers, France

Numerical Modelling-Based Methodology for Generating Fragility Curves of Underground Tunnels under Static Loading

Shahriyar HEIDARZADEH (1), Ali SAEIDI (2)

1: SNC-Lavalin, Canada

2: University of Quebec at Chicoutimi (UQAC)

A numerical modelling study of the effect of pillar shape on pillar strength

Jan Abram MARITZ, Daniel Francois MALAN

all: University of Pretoria, South Africa

Numerical modeling of cracking process in partially saturated porous media and application to rainfall-induced slope instability analysis

Meng WANG, Zhan YU, Jianfu SHAO

all: University of Lille, CNRS, France

Applicability of Artificial Neural Networks (ANN) for equilibrium state prediction in tunnel excavation

Alec TRISTANI, Lina-María GUAYACÁN-CARRILLO, Jean SULEM, Sebastián Ariel DONZIS

all: Ecole des Ponts ParisTech, France

Numerical prediction of thermal weakening effects on granite rock

Timo SAKSALA

Tampere University, Tampere, Finland

Multiscale modelling of rock behaviour around underground works with an insight of microstructural characteristics influence

Benoît PARDOEN, Christos MOURLAS

all: University of Lyon, ENTPE, LTDS, France

Modelling brittle rock mass behaviour in deep underground excavations

Giuseppe CAMMARATA (1), Davide ELMO (2), Sandro BRASILE (3)

1: Seequent, The Bentley Subsurface Company, Milan, Italy

2: University of British Columbia, NBK Institute of Mining Engineering, Vancouver, Canada

3: Seequent, The Bentley Subsurface Company, Delft, The Netherlands

The correlation between aperture evolution and induced seismicity during simulated hydraulic fracturing in lab-scale coal samples

Xin ZHANG, Guangyao SI, Joung OH

all: University of New South Wales, Australia

Phase-field model of compressive and tensile fractures in ductile sandstone, calibrated by P wave velocity measurement and moment tensor inversion

Xu LI, Guangyao SI, Joung OH, Ismet CANBULAT

all: UNSW, Australia

The effect of temperature on lost circulation through induced fractures - a fully coupled THM model

Shuai ZHANG (1), Yongcun FENG (1), Tao XIE (2), Qi HE (1), Hai LIN (2)

1: China University of Petroleum,Beijing, China

2: Tianjin Branch, CNOOC (China) Co., Ltd., Tianjin, China

Semmering-Basetunnel, Alternative Numeric Modelling of Long-term Rock Mass Behavior and Conceptual Support Design

Alexander POISEL (1), Gunter GSCHWANDTNER (2), Markus SITZWOHL (3), Oliver Kai WAGNER (4)

1: IGT Geotechnik und Tunnelbau ZT GmbH, Austria

2: Energie AG, formaly iC-Consulenten, Linz, Austria

3: IGT Geotechnik und Tunnelbau ZT GmbH, Austria

4: ÖBB-Infrastruktur AG, Graz, Austria

The effective material properties of rock mass inversed from dynamic test data

Rui HUANG (1,2), Takafumi SEIKI (1), Qinxi DONG (3), Hui WANG (3), Ömer AYDAN (4)

1: Utsunomiya University, Utsunomiya, Japan

2: Xihua University, Chengdu, China

3: Hainan University, Haikou, China

4: University of the Ryukyus, Okinawa, Japan

Influence of contact shape and distribution on fluid flow through a fracture

Masoud TORKAN (1), Amir HOSSEINI KHORASGANI (2), Lauri UOTINEN (1), Alireza BAGHBANAN (2), Mikael RINNE (1)

1: Department of Civil engineering, Aalto University, Finland

2: Department of Mining Engineering, Isfahan University of Technology, Isfahan, Iran

Anisotropy Effects on the Response of Deep Tunnels Excavated in Claystone

Miguel Angel MÁNICA (2), Antonio GENS (1), Jean VAUNAT (1), Gilles ARMAND (3), Minh-ngoc VU (3)

1: Universitat Politecnica de Catalunya - CIMNE, Spain

2: National Autonomous University of Mexico. Mexico

3: ANDRA R&D, France

A numerical analysis of weakening of a granitic rock by piezoelectric excitation of quartz

Rafael Arturo RUBIO RUIZ (1), Timo SAKSALA (1,2), Alexandre KANE (3), Mikko HOKKA (1)

1: Faculty of Engineering and Natural Sciences, Tampere University, Finland

2: Faculty of Built Environment, Tampere University, Finland

3: Sintef Industry, Norway

Assessment on the in-situ rock stress condition along an unlined pressure tunnel/shaft of a Norwegian Hydropower Project using numerical modeling

Bikash CHAUDHARY (1), Krishna Kanta PANTHI (1), Nghia Quoc TRINH (2)

1: NTNU, Norway

2: SINTEF, Norway

Numerical investigation of the behaviour of underground strata reinforced with polymer liner, steel mesh and bolts subjected to buckling failure

Saurav KARN (1), Ian PORTER (2), Shivakumar KAREKAL (2)

1: BHP, Australia

2: University of Wollongong, Australia

Development and application of a grain-based hybrid finite-discrete element method for investigating fracture processes of heterogeneous rocks under static and dynamic loads

Hongyuan LIU (1), Daisuke FUKUDA (2), Haoyu HAN (3), Di WU (4), Qianbing ZHANG (5)

1: School of Engineering, University of Tasmania, Hobart, Australia

2: Faculty of Engineering, Hokkaido University, Sapporo, Japan

3: School of Architecture and Planning, Yunnan University, Kunming, China

4: Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan, China

5: Department of Civil Engineering, Monash University, Melbourne, Australia

CERN (HL-LHC): challenges and tunneling experience for the design of new underground structures at Point 5

Davide MERLINI (1), Matteo FALANESCA (1), Filippo GIANELLI (1), Gianluca BELLA (1), Roberto SCHÜRCH (1), Anastasia LOPEZ- HERNANDEZ (2)

1: Pini Group SA, Switzerland

2: CERN, Switzerland

Effect of blast damage on pillars of caving mines

Edgar MONTIEL (1), Max BLODEL (1), Edjan BUSTAMANTE (2), Esteban HORMAZABAL (1)

1: Srk, Chile

2: Autonoumus University of México

Optimum spacing of TBM disc cutters using an explicit finite element approach

Asif Jeelani BHAT, Dr vidya Bhushan MAJI

all: indian institute of technology madras, India

A 3D breakable Grain-Based Discrete Element model for transversely isotropic rocks

Leandro Lima RASMUSSEN (1,2), Ki-Bok MIN (2)

1: University of Brasilia, Brasilia, Brazil

2: Seoul National University, Seoul, Republic of Korea

Production Sequence Analysis of an Overhand Cut-And-Fill Mine in a Narrow-Vein Type Orebody Using Numerical Modeling

Ahmet Gunes YARDIMCI, Mustafa ERKAYAOGLU

all: Middle East Technical University, Türkiye

Novel numerical approach to modeling excavation in hard rocks

Erick RÓGENES (1,2), Leandro RASMUSSEN (1), Márcio FARIAS (1), Alessandra GOMES (2)

1: University of Brasilia, Brazil

2: DF+ Engenharia

Analyzing numerical grouted rockbolt behaviour in jointed pseudo-discontinuum models

Caitlin FISCHER, Mark DIEDERICHS

all: Queen's Geomechanics and Geohazards Group, Department of Geological Sciences and Geological Engineering, Queen's University, Canada

Modelling the hydro-mechanical behaviour of a 3D rough-walled rock joint

Xu ZHU, Min GAO, Guangyao SI, Chengguo ZHANG, Joung OH

all: University of New South Wales, Australia

Data Assimilation for Prediction of Surrounding Rock Mass Behavior during Underground Structure Construction Phases

Yasuhisa AONO, Tetsuo OKUNO

all: Shimizu Corporation, Japan

Influence of deep coal mines on the stability of shallow cavities

Temenuga GEORGIEVA (1,2), Fanny DESCAMPS (1), George AJDANLIJSKY (3), Sara VANDYCKE (1), Nicolas GONZE (1), Jean-Pierre TSHIBANGU (1)

1: University of Mons, Belgium

2: Euridice, Belgium

3: Bulgarian Academy of Sciences, Bulgaria

On advanced numerical techniques for the modeling of bolt reinforced rock mass

Tuan Anh BUI (1), Giuseppe CAMMARATA (1), Varun Choudary KANCHARLA (1), Ronald BRINKGREVE (2), Sandro BRASILE (1)

1: Seequent, The Bentley Subsurface Company, The Netherlands

2: Delft University of Technology, The Netherlands

Comparison of analytical and numerical solutions for stresses and displacements around unlined tunnels with arbitrary cross sections inside anisotropic rock masses

Manuel Bernhard WINKLER (1), Ali YAZ (2), Thomas MARCHER (1)

1: Graz University of Technology, Graz, Austria

2: Istanbul Technical University, Istanbul, Turkey

Modeling of joints of segment linings under complex relation between lining and ground conditions

Kyeunghye AHN (1), Amade POUYA (1), Gye-Chun CHO (2)

1: Laboratoire Navier (Université Gustave Eiffel, CNRS, ENPC), Ecole des Ponts ParisTech, Marne-la-Vallée, France

2: Department of Civil and Environmental Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, South Korea

Development of a 3D discrete element method approach to study the evolution of rock cutting mechanism in high-depth conditions: application to Vosges Sandstone

Nicolas GONZE, Fanny DESCAMPS, Jean-Pierre TSHIBANGU

all: University of Mons, Mons, Belgium

Analysing the influence of finite deformations treatment towards the safety assessment of nuclear waste repositories

Steffen BEESE, Ralf EICKEMEIER, Jobst MASSMANN, Sandra FAHLAND

all: BGR, Germany

Fluid injection influence on fracture propagation near an underground drift

Mohammad Youssef FALLAH SOLTANABAD (1), Amade POUYA (1), Lina Maria GUAYACAN CARRILLO (1), Laurent BROCHARD (1), Christophe DE LESQUEN (2), Minh-ngoc VU (2)

1: Navier Laboratory/CERMES, École des Ponts ParisTech, Gustave Eiffel University, CNRS, Marne-la-Vallée, France

2: Andra R&D, 92290 Châtenay-Malabry, France

A new perspective of load-transfer behavior of rough rock-socketed piles

José G. GUTIÉRREZ-CH (1), Salvador SENENT (1), Svetlana MELENTIJEVIĆ (2), Rafael JIMENEZ (1)

1: E.T.S.I. de Caminos, Canales y Puertos, Universidad Politécnica de Madrid, Madrid, Spain

2: Universidad Complutense de Madrid, Spain

Consideration of Creep Deformation in Deep Underground Gallery Excavation in Claystone

Richard WITASSE (1), Jean-Francois BRUCHON (2), Sebastien BURLON (2)

1: Seequent, The Netherlands

2: Terrasol, France

*** POSTER PRESENTATIONS ***

(The contributions listed below are NOT in the chronological order of poster presentation. NOT all of them will be presented.)

Forecast of Mine Inflow using In-situ Well Test and Visual Modflow in an Underground Mine

Myong Song SONG (1), Un Chol HAN (2), Kun Ui HONG (1), Il Yong KANG (2), Yong Il RI (3)

1: Faculty of Mining Engineering, Kim Chaek University of Technology, Democratic People's Republic of Korea (North Korea)

2: School of Science and Engineering, Kim Chaek University of Technology, Democratic People's Republic of Korea (North Korea)

3: Faculty of Anthracite Mining Engineering, Pyong Song University of Coal Mining, Democratic People's Republic of Korea (North Korea)

A continuum-oriented finite-discrete element method (cFDEM) for rock fracturing simulation

Ke GAO (1,2), Weibing CAI (1,2), Shugang AI (1,2)

1: Department of Earth and Space Sciences, Southern University of Science and Technology, Shenzhen, Guangdong, China

2: Department Guangdong Provincial Key Laboratory of Geophysical High-resolution Imaging Technology, Southern University of Science and Technology, Shenzhen, Guangdong, China

Numerical modelling of pillars with weak alteration layers using the TEXAN code

Paul Michael COUTO (1), Daniel Francois MALAN (2)

1: Cartledge Mining and Geotechnics, Australia

2: University of Pretoria, South Africa

Numerical modeling and monitoring of blast-induced ground vibration of the Kebasen railway tunnel in Indonesia

Simon Heru PRASSETYO (1), Ganda Marihot SIMANGUNSONG (2), Yofi OKATRISZA (3), Imam SUBCHI (4)

1: Mining Engineering, Institut Teknologi Bandung, Bandung, Indonesia

2: Mining Engineering, Institut Teknologi Bandung, Bandung, Indonesia

3: Commitment-Making Officer for Cirebon-Kroya Double-Track Railways, Directorate General of Railways, Ministry of Transportation of the Republic of Indonesia, Jakarta, Indonesia

4: Project Manager for the Kebasen Tunnel Construction, PT. Adhi Karya (Persero) Tbk, Jakarta, Indonesia

A Model Benchmark Exercise for the 2D Analysis of a Tunnel Excavation in Rock

Sebastien BURLON (1), Jean-Francois BRUCHON (1), Richard WITASSE (2)

1: Terrasol, France

2: Seequent, The Netherlands

The shear behavior of the rock-concrete interface with different angles: A DEM simulation

Yingcai HOU (1), Lushan SHU (1), Kai SHEN (2), Yadong XUE (1)

1: Department of Geotechnical Engineering College of Civil Engineering, Tongji University, People's Republic of China

2: School of Civil Engineering, Central South University, Changsha, China

Integral system of monitoring and modeling for blast optimization

Ruilin YANG

Orica, United States of America

Slope support analysis at Jwaneng Mine

Christian CANCINO (1), Loren LORIG (1), Augusto LUCARELLI (1), Kabo GABANAKGOSI (2), Otsile BAREI (2)

1: Itasca Consulting Group, USA

2: Debswana Diamond Company, Botswana

Mathematical model to describe the movement of rocks due to gravity in block caving mining

Sergio PALMA (1), Rodolfo MORALES (2)

1: Universidad Técnica Federico Santa María, Chile

2: Universidad de Chile

Numerical analysis of pillar stability for safe mining of a combined mine based on three-dimensional solid model

Un Chol HAN (1), Kum Il PAK (2), Kun Ui HONG (2), Chol RI (2), Il Yong KANG (1), Shang Guk CHOE (3), In Jun RI (3), Yong Il RI (4)

1: School of Science and Engineering, Kim Chaek University of Technology, Democratic People's Republic of Korea (North Korea)

2: Faculty of Mining Engineering, Kim Chaek University of Technology, Democratic People's Republic of Korea (North Korea)

3: Shangnong Mine, Democratic People's Republic of Korea (North Korea)

4: Faculty of Anthracite Mining Engineering, Pyong Song University of Coal Mining, Pyongsong, Democratic People's Republic of Korea (North Korea)

2-Dimensional and 3-Dimensional Drawdown Analysis of Sediment Dam

Thedy SENJAYA (1), Ridho Kresna WATTIMENA (1), Nuhindro Priagung WIDODO (1), Devi KAMARATIH (1), Nisrina Zaida ULFA (2)

1: Bandung Institute of Technology, Bandung, Indonesia

2: PT Aneka Tambang Tbk, Jakarta, Indonesia

Finite element analysis-aided performance examination of the umbrella arch method for tunneling through weak zone

Hsin Chen CHOU, Cheng Han LIN, On Lei Annie KWOK, Yu Chao LIN, Ming Lang LIN

all: National Taiwan University, Taipei, Taiwan

Seismic velocity estimation using a digital rock without segmentation - tips for accurate calibration and estimation

Kazuya ISHITSUKA, Hitoshi MATSUI, Weiren LIN, Nana KAMIYA, Yoshitaka NARA

all: Kyoto University, Japan

Failure characteristics of rock mass around sublevel and shrinkage stopes in steep thick orebody using Surpac and 3DEC

Kun Ui HONG (1), Chung Song CHOE (1), Chung Il KIM (1), Un Chol HAN (2)

1: Faculty of Mining Engineering, Kim Chaek University of Technology, Democratic People's Republic of Korea (North Korea)

2: School of Science and Engineering, Kim Chaek University of Technology, Pyongyang, Democratic People’s Republic of Korea

The effect of different rock mass properties on deformation distribution detected with intelligent rock bolts in underground mining

Michel VARELIJA (1), Michael NÖGER (1), Philipp HARTLIEB (1), Peter MOSER (1), Dominik DENDL (2)

1: Montanuniversitaet Leoben, Austria

2: DSI Underground

An iterative scheme for the determination of the conformal mapping coefficients used in closed-form solutions for tunnels with arbitrary geometry

Manuel Bernhard WINKLER (1), Thomas MARCHER (1), Ali YAZ (2)

1: Graz University of Technology, Graz, Austria

2: Instanbul Technical University, Istanbul, Turkey

Kinematic simulation of rock cutting performance of a 130t Roadheader in Korea

Mun-Gyu KIM (1), Hyun-Jun PARK (1), Joo-Young OH (1), Chang-Heon SONG (1), Jung-Woo CHO (1), Ho-Young JEONG (2)

1: KITECH (Korea Institute of Industrial Technology)

2: Pukyong National University

Simulation of ground deformation of subway station using pile-beam-arch method

Hui HE, Chao WANG, Hua JIANG, Zhengyuan LIU, Zhiyong YANG, Yusheng JIANG, Jili FENG

all: China University of Mining and Technology Beijing, People's Republic of China

Probabilistic assessment of rock loads for tunnel support design

Jiwoo AHN (1), Jurij KARLOVŠEK (2), Adrian SMITH (3)

1: BHP, Australia

2: The University of Queensland, Australia

3: PSM, Australia

Numerical simulation of THM coupled behavior in the high-level radioactive waste disposal using OGS-FLAC

Taehyun KIM (1), Chan-Hee PARK (2), Changsoo LEE (1), Jin-Seop KIM (1)

1: Korea Atomic Energy Research Institute, Republic of Korea (South Korea)

2: Korea Institute of Geoscience and Mineral Resources, Republic of Korea (South Korea)

Excavation stability of deep tunnels in water-bearing fault zones

Gerold LENZ

iC consulenten ZT GesmbH, Austria

Development of an efficient parallelization scheme for fully implicit discontinuous deformation analysis (dda)

Tatsuki TOKUDA (1), Ryota HASHIMOTO (2)

1: Hiroshima University, Japan

2: Kyoto University, Japan

A fast and novel hybrid technique for simulation of fluid flow in large-scale fractured rock masses using streamline method and modified Bresenham line algorithm

Sajad NAMDARI (1), Alireza BAGHBANAN (1), Hamid HASHEMOLHOSSEINI (2)

1: Department of mining engineering, Isfahan University of Technology (IUT), Isfahan, Iran

2: Department of civil engineering, Isfahan University of Technology (IUT), Isfahan, Iran

A Surrogate Model for Automating Slope Stability Analysis

Amichai MITELMAN (1), Beverly YANG (2), Davide ELMO (2)

1: Ariel University, Israel

2: University of British Columbia, Vancouver, Canada

Estimation of fracture diameter probability distribution based on truncated trace-length data

Jian LIU, Long YU, Xingguang ZHAO, Liang CHEN, Ju WANG

all: CAEA Innovation Center for Geological Disposal of High-Level Radioactive Waste, Beijing Research Institute of Uranium Geology, Beijing, China

GSI or JRC – continuum or discontinuum modelling – some suggestions and some critique

Nicholas Ryland BARTON

NB&A, Norway

Evaluation of inclined loads in pillars stability

Edjan BUSTAMANTE (1), Edgar MONTIEL (2), Alexandra OSSA (3)

1: Universidad Nacional Autónoma de México, México

2: Srk, Chile

3: Insituto de Ingenería UNAM, México

Shear wave propagation across jointed rocks of varying seismic impedance

Kallol SAHA, Resmi SEBASTIAN

all: Department of Civil Engineering, Indian Institute of Technology, Ropar, India

Numerical Calibration of Laboratory Results of 3D Printed Sandstone Analogues using Finite/Discrete Element Method (FDEM)

Dima SHAMSEDINE (1), Pooya HAMDI (1), Florian AMANN (1,2)

1: RWTH Aachen University, Department of Engineering Geology and Hydrogeology, Aachen, Germany

2: Fraunhofer Research Institution for Energy Infrastructure and Geothermal Systems, IEG, Aachen, Germany

Numerical evaluation of surface settlement induced by shield tunneling at rock mass

Jun-Beom AN, Jeonguk BANG, Joo-Hyun SEONG, Gye-Chun CHO

all: Korea Advanced Institute of Science and Technology, Daejeon, Republic of Korea

Numerical simulation of rock’s fatigue behavior using a modified indirect boundary element method

Abolfazl ABDOLLAHIPOUR (2), Mohammad FATEHI MARJI (1), Rezvan ALIZADEH (1), Manouchehr SANEI (1)

1: Department of Mining and Metallurgy, Faculty of Engineering, Yazd University, Islamic Republic of Iran

2: School of Mining Engineering, College of Engineering, University of Tehran, Tehran, Iran

Numerical Study of Brittle Characteristics of Deep Buried Conglomerate Based on Discrete Element Method

Mingfei YAN (1), Yan JIN (1), Yunhu LU (1), Zongyu LU (2)

1: China University of Petroleum,Beijing, People's Republic of China

2: PetroChina Xinjiang Oilfield Company, Karamay, China

Polymorphic uncertainty modelling of rock properties coupled with combined probabilistic and non-probabilistic framework for rock tunnel stability analysis

Surabhi MAURYA (1), Dr. Gaurav TIWARI (2)

1: Indian Institute of Technology Kanpur, India

2: Indian Institute of Technology Kanpur, India

Simulation of the run-out and mobilized volume of a 3D rock slope failure using the Material Point Method (MPM)

Fabrício FERNÁNDEZ (1), Eurípedes VARGAS JR. (1), Miguel PAGANIN NETO (2), Elder RIBEIRO (2), Christiano NOGUEIRA (2), Camilla EUZEBIO (2), Joao DELVEAUX (2), Daniel MONTEIRO MACHADO (3), Claus NAVES EIKMEIER (3)

1: Pontifical Catholic University of Rio de Janeiro, Rio de Janeiro, Brazil

2: VALE S.A.

3: Tetra Tech Coffey

The accurate knowledge of the joint term for rock mass classification and for the numerical tunnels analysis and its impact on the on the reinforcement’s costs

Wagdi NAIME (1), Roque GARCÍA (2)

1: Central University of Venezuela

2: Andres Bello Catholic University

Simulating on the evolution of natural pores and induced microcracks in rock samples: an elastoplastic damage Gurson type model

Xu LI, Guangyao SI, Joung OH, Ismet CANBULAT

all: UNSW, Australia

Application of empirical and numerical modelling for stability analysis of developmental workings in an underground coal mine

Surajit SARKAR, Manoj Kumar TIWARI, Syed Shah Ghalib ASKARI, Indranil SAHA, Piyush SRIVASTAVA, D.B. Sundara RAMAM

all: Tata Steel Limited, Jamshedpur, India

Evaluation of trends in tunnel lining utilization with regard to the moment of ring closure

Vaibhav SHRINGI, Manuel Bernhard WINKLER, Alexander KLUCKNER, Thomas MARCHER

all: Graz University of Technology, Graz, Austria

Numerical modeling of erosion in dense slurry flows

Shahabedin HOJJATI (1), Hassan POURARIA (2), Seokwon JEON (1,3)

1: Research Institute of Energy and Resources, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, Republic of Korea

2: Department of Chemical and Materials Engineering, New Mexico State University, Las Cruces, NM, USA

3: Department of Energy Systems Engineering, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, Republic of Korea

A post-stack seismic sparse dictionary learning inversion method based on logging data - A case study of the Tarim Basin

Long CHEN (1), Xin ZHANG (2), Li ZHAO (1), Bao ZHOU (1), Yan DING (3), Yunhu LU (2), Yutian HAN (1)

1: PetroChina Tarim Oilfield Company, Korla, China

2: College of Petroleum Engineering, China University of Petroleum Beijing, China

3: CNPC Engineering Technology R＆D Co., Ltd., Beijing,China

Effect of joint dip on the transmission of stress waves from a moving point load in a parallel jointed rock mass

Harry HOLMES (1), Chrysothemis PARASKEVOPOULOU (1), Mark HILDYARD (1), Krishna NEAUPANE (2), David CONNOLLY (1)

1: University of Leeds, United Kingdom

2: AECOM, United Kingdom

Modelling time-dependent processes resulting from thermo-viscoelastic behaviour of rocks

Donát M. TAKÁCS (1,2), Tamás FÜLÖP (1,2), Áron POZSÁR (1,2), Róbert KOVÁCS (1,2,3), Mátyás SZÜCS (1,2,3), Peter VÁN (1,2,3)

1: Department of Energy Engineering, Faculty of Mechanical Engineering, Budapest University of Technology and Economics, Hungary

2: Montavid Thermodynamical Research Group, Budapest, Hungary

3: Institute for Particle and Nuclear Physics, Wigner Research Centre for Physics, Budapest, Hungary

Practical Implications of Using the Ubiquitous Joint Models in Continuum Applications

Bijan PEIK (2), Andrew TSAI (3), Karl LAWRENCE (2), Karen MOFFITT (1)

1: Equilibrium Mining Pty Ltd. (AU)

2: Equilibrium Mining Inc. (USA)

3: Equilibrium Mining Inc. (CA)

Applicability of DEM - Rate Process Theory approach for rock creep simulation

José G. GUTIÉRREZ-CH (1), Salvador SENENT (1), Eliana GRATEROL (1), Peng ZENG (2), Rafael JIMENEZ (1)

1: E.T.S.I. de Caminos, Canales y Puertos, Universidad Politécnica de Madrid, Madrid, Spain

2: Chengdu University of Technology, China

*** ORAL PRESENTATIONS ***

(The contributions listed below are NOT in the chronological order of presentation.)

Determining the Magnitudes of Maximum and Minimum Horizontal Stresses from Borehole Data: Comparison Between Borehole Failure Approach and Poroelastic Strain Model

Nazir MAFAKHERI BASHMAGH (1), Weiren LIN (1), Abbas KHAKSAR MANSHAD (2)

1: Kyoto University, Japan

2: Petroleum University of Technology, Iran

Understanding shale fracture network complexity in the laboratory

Aly ABDELAZIZ, Phyllis S. WU, Mei LI, Earl MAGSIPOC, Karl PETERSON, Giovanni GRASSELLI

all: Department of Civil and Mineral Engineering, University of Toronto, Canada

Numerical investigations on THM coupled process during water flooding with multiple well patterns under non-isothermal two phase flow

Yuhao LIU (1), Fengshou ZHANG (1), Dingwei WENG (2), Hongbo LIANG (2), Chunming HE (2)

1: Department of Geotechnical Engineering, College of Civil Engineering, Tongji University, Shanghai 200092, China

2: Research Institute of Petroleum Exploration & Development, PetroChina, Beijing 100083, China

*** POSTER PRESENTATIONS ***

(The contributions listed below are NOT in the chronological order of poster presentation. NOT all of them will be presented.)

Analysis of fracture initiation pressure of horizontal well in transversely isotropic shale reservoirs

Lichun JIA, Hu DENG, Dianchen LIU, Zhilin LI, Weicheng LI

all: Drilling & Production Technology Research Institute, CNPC Chuanqing Drilling Engineering Company Limited, People's Republic of China

Analysis of time-dependent wellbore instability with a porochemothermoelastic coupling model in tight gas reservoirs

Lichun JIA, Dengyun LU, Gui TANG, Changhong ZHOU

all: Drilling & Production Technology Research Institute, CNPC Chuanqing Drilling Engineering Company Limited, People's Republic of China

Mechanical anisotropy and tension-shear characteristics of shale in Pengshui area, Chongqing

Shouding LI (1,2,3), Zhiquan YU (4), Supeng ZHANG (1,2,3), Jianming HE (1,2,3), Zhaobin ZHANG (1,2,3), Xiao LI (1,2,3)

1: Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing, China

2: College of Earth and Planetary Sciences, University of Chinese Academy of Sciences, Beijing, China

3: Innovation Academy for Earth Science, Chinese Academy of Sciences, Beijing, China

4: Inspur Group Co Ltd, Jinan, China

Faults reactivation risk evaluation during water injection into shale gas reservoirs: A case study

Pengwei ZHANG, Huantong LIU, Lili LI, Baoguo LIU

all: Beijing Jiaotong University, Beijing, China

Well Cement Composition Optimization for Deep Well Applications

Guodong CHENG (1), Xueyu PANG (1), Zhengsong QIU (1), Jiankun QIN (1), Ning LI (2)

1: School of Petroleum Engineering, China University of Petroleum (East China), Qingdao, P. R. China

2: Oil and Gas Engineering Research Institute (Tarim oilfield Company), China National Petroleum Corporation, Tarim, P. R. China

A data-driven model for the prediction of stimulated reservoir volume (SRV) evolution during hydraulic fracturing

Zhao FENG (1), Fengshou ZHANG (1), Xianda SHEN (2), Bichen YAN (3), Zhaowei CHEN (4)

1: Department of Geotechnical Engineering, Tongji University, Shanghai, China

2: Department of Civil and Environmental Engineering, Clarkson Univeristy, Potsdam, NY, USA

3: Ali I. Al-Naimi Petroleum Engineering Research Center, Physical Science and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal, Saudi Arabia

4: CNPC Drilling Research Institute, Beijing, China

Laboratory hydraulic fracturing experiments on thermally treated tight sandstone samples under step up incremental loading

Pankaj RAWAT, Narendra Kumar SAMADHIYA

all: Indian Institute of Technology Roorkee, India

Carbon dioxide impact on the mechanical properties of a sandstone from San Jorge Gulf Basin (Argentina)

Cecilia LASKOWSKI (1,2), Diego MANZANAL (2), Mauro MUÑIZ-MENÉNDEZ (3), Sandra ORLANDI (1), José ALLARD (1)

1: Universidad Nacional de la Patagonia San Juan Bosco, Comodoro Rivadavia, Argentina

2: Universidad Politécnica de Madrid, Madrid, Spain

3: Laboratorio de Geotecnia, CEDEX, Madrid, Spain

Numerical investigation of cement sheath integrity under thermo-mechanical coupling based on damage mechanics

Chenwang GU (1), Yongcun FENG (1), Nan CHEN (2), Xiaorong LI (1), Jingen DENG (1)

1: China University of Petroleum Beijing, Beijing, China

2: Pengbo Operating Company of CNOOC (China) Co., Ltd, Tianjin, China

Mechanism of wellbore collapse for Carboniferous, Ordovician and Cambrian strata in Southwestern Tarim of China

Yong SHENG (1), Bing BAI (2), Jinzhi ZHU (1), Zexv ZHANG (2), Haiying LU (1), Mian CHEN (2), Yunhu LU (2)

1: Tarim Oil Field Company, Petro China

2: State Key Laboratory of Petroleum Resources and Prospecting, China University of Petroleum (Beijing)

The challenge of ocean shallow extended reach wells: how to achieve a farther extension limit

Yiqi ZOU, Xuyue CHEN, Deli GAO, Siyuan YIN, Qiqi YANG

all: China University of Petroleum, Beijing, China

Prediction of Safe Mud Window Based on Seismic Data in Carbonate Formation

Huiwen PANG (1), Hanqing WANG (2), Yan JIN (1)

1: China University of Petroleum-Beijing

2: Petroleum Exploration and Production Research Institute, SINOPEC, People's Republic of China

*** ORAL PRESENTATIONS ***

(The contributions listed below are NOT in the chronological order of presentation.)

Influence of microscopic composition on the strength of rock-like materials under various loading rates

Meng-Chia WENG (1), Hoang-Khanh LE (1), Hung-Hui LI (2), Chih-Shan LEE (1), Chia-Chi CHIU (3)

1: National Yang Ming Chiao Tung University

2: National Defense University

3: National Taipei University of Technology

The influence of microwave treatment on the Cerchar abrasivity of igneous rocks

Sair KAHRAMAN (1), Egemen SAYGIN (2), Mustafa FENER (3)

1: Hacettepe University, Turkey

2: RPM Global-Turkey

3: Ankara University

Effect of normal stress on dynamic friction weakening of granitic rock joints under cyclic shear

Kai ZHANG (1), Ling ZHU (2), Li CHENG (3), Qingchao LYU (4), Yaoru LIU (1)

1: Tsinghua University, People's Republic of China

2: Hydropower Engineering Technology Research Center, Academy of Science and Technology, China Three Gorges Corporation

3: China Renewable Energy Engineering Institute

4: Powerchina Northwest Engineering Corporation Limited

Flow simulation in digital rough fractures by considering anisotropic roughness and geometrical combinations

Xunhui XU (1), Weiren LIN (1), Han BAO (2), Peijie YIN (2)

1: Kyoto University

2: Chang'an University

Assessment of the creep behavior of siltstone for the Snowy 2.0 hydropower station using multistage uniaxial and triaxial creep tests

Samer ABOU KHEIR (1), Andrea BROGIATO (1), Patrick LIGNIER (2), Angelo LAMBRUGHI (3), Gabriele DE CARLI (4), Mark DIEDERICHS (5), Ivan CHING (6), Damiano FRONTINI (7)

1: Tractebel Engineering S.A, Gennevilliers, France

2: Tractebel Engineering S.A, Lyon, France

3: Webuild S.p.A, Milan, Italy

4: Webuild S.p.A, Rome, Italy

5: Queen’s University, Kingston, Canada

6: Snowy Hydro Limited, Cooma, Australia

7: Future Generation Joint Venture, Cooma, Australia

Intact Strength Determination of Rock Containing Mesodefects using the Leeb Hardness Test

Andrew Garnet CORKUM (1), Derek KINAKIN (3), Diego MAS IVARS (2)

1: Dalhousie University, Canada

2: BGC Engineering Inc, Canada

3: SKB and KTH, Sweden

Physical modelling of bimrocks in large scale direct shear apparatus

Milorad JOVANOVSKI, Jovan Br. PAPIC, Igor PESHEVSKI

all: University Ss. Cyril and Methodius, Faculty of Civil Engineering, Republic of North Macedonia

Application of Digital Image Correlation for Analysis of Anisotropic Materials Under Tension

Timothy Robert Michael PACKULAK, Émélie GAGNON, Samuel Keith WOODLAND, Jennifer Jane DAY

all: Department of Geological Sciences and Geological Engineering, Queen's University, Canada

A modification of nonlinear Forchheimer’s coefficient for fracture flow during shear

Min GAO, Xu ZHU, Chengguo ZHANG, Joung OH

all: University of New South Wales, Australia

Temperature-dependent strength of ice-filled discontinuities in frozen and thawing rock masses

Greg GAMBINO (1), John P. HARRISON (2)

1: University of Toronto, Canada (now at WSP Canada Inc.)

2: University of Toronto, Canada

Influence of the specimen slenderness on the direct tensile strength of rocks

Mauro MUÑIZ-MENÉNDEZ (1), Ignacio PÉREZ-REY (2)

1: CEDEX, Madrid, Spain

2: University of Vigo, Vigo, Spain

Spatial modeling of rock strength heterogeneity and anisotropy using Universal Discontinuity index (UDi)

Amin HEKMATNEJAD (1), Eduardo ROJAS (2), Alvaro PEÑA (3), Benoit CRESPIN (4)

1: Pontificia Universidad Católica de Valparaiso, Chile

2: CODELCO, Chile

3: Pontificia Universidad Católica de Valparaiso, Chile

4: University of Limoges, France

Elucidation of microscopic stress state within surface asperities of a rock joint

Bunyuu HASEGAWA (2), Sota HIGASHI (1), Atsushi SAINOKI (1)

1: Kumamoto University, Japan

2: Tokyo University, Japan

Cracking evolution for deep hard coal using X-ray in-situ micro-CT technology and fractal theory

Liang ZHANG (1,2), Xiaopeng LI (1), Qingxin QI (1), Haitao LI (1)

1: Deep Mining and Rockburst Research Institute, CCTEG Chinese Institute of Coal Science, Beijing, China

2: State Key Laboratory Cultivation Base for Gas Geology and Gas Control, Henan Polytechnic University, JiaoZuo, Henan, China

A Study on Dynamic Shear Properties of Bimrock

Nazlı TUNAR ÖZCAN (1), Elif AVŞAR (2)

1: Hacettepe University

2: Konya Technical University

Investigation on the influence of non-stationary trend on the shear strength of rock joints

Changshuo WANG, Shigui DU, Weiming LIU, Rui YONG, Zhanyou LUO

all: Institute of Rock Mechanics, Ningbo University, Ningbo, Zhejiang, China

Failure response of rocks under different cyclic loading histories

Abbas TAHERI (1), Roohollah SHIRANI FARADONBEH (2)

1: Queen's University, Canada

2: Curtin University, Australia

A new simple shear test of rock prism specimen by torsional shearing

Yota TOGASHI (1), Riho HIRASAWA (2), Masahiko OSADA (1)

1: Saitama University, Japan

2: Saitama University (presently Oriental Consultants), Japan

A theoretical framework for calibrating the transversely isotropic elastic rock parameters from UCS tests on cylindrical specimens using circumferential strain measurements

Manuel WINKLER, Thomas FRÜHWIRT, Thomas MARCHER

all: Institute of Rock Mechanics and Tunnelling, TU Graz, Austria

Swelling pressures of clay rocks from laboratory tests: experience and improvements

Walter STEINER (1), Fritz MADSEN (2), Jean-François MATHIER (3)

1: B+S AG, Bern, Switzerland

2: Consultant, ret. ETHZ. Adliswil, Switzerland

3: Consultant, ret. EPFL, Avenches, Switzerland

The Interplay between Geometry and THMC Processes

Mengsu HU (1), Laura PYRAK-NOLTE (2)

1: Lawrence Berkeley National Laboratory, USA

2: Purdue University, USA

Determining the transversely isotropic elastic constants from strain data by means of different mathematical approaches

Manuel A GONZÁLEZ-FERNÁNDEZ (1), Ignacio PÉREZ-REY (1), Leandro R ALEJANO (1), José MURALHA (2), Seungki HONG (3), Ki-Bok MIN (3)

1: Department of Natural Resources & Environmental Engineering, University of Vigo, Spain

2: Concrete Dams Department, National Laboratory for Civil Engineering (LNEC), Lisbon, Portugal,

3: Department of Energy Systems Engineering and Research Institute of Energy and Resources, Seoul National University, Seoul, Republic of Korea

Characterization of Mobilized Cohesion, Friction and Dilation Angles of Brittle Rock During Plastic Deformation

Sarbartha SARKAR, Rakesh KUMAR

all: Indian Institute of Technology Kharagpur, India

Hard soil and rock classification – Pressuremeter data versus tests on samples

Peter ALLAN (1), Jean-Pierre BAUD (2), Robert HEINTZ (3)

1: Pace Geotechnics, Morpeth, Northumberland, United Kingdom

2: Eurogéo, France

3: Eurasol, Luxembourg

On the crack initiation location in the Brazilian test: Griffith-based insight

Yousef NAVIDTEHRANI (1), Covadonga BETEGÓN (1), Robert W. ZIMMERMAN (2), Emilio MARTÍNEZ-PAÑEDA (2)

1: University of Oviedo, Gijon, Spain

2: Imperial College London, London, UK

Fundamental study on estimation of permeability at in-situ EDZ from pore air pressure response

Masahiko OSADA, Koji OSAWA, Christina Putri WIDYANINGTYAS, Yota TOGASHI

all: Saitama University, Japan

Micro-fracturing in SCB test: Acoustic emission analysis

Matej PETRUZALEK (1), Ali AMINZADEH (1), Vaclav VAVRYCUK (1,2), Zuzana JECHUMTALOVA (2), Petr KOLAR (2), Josef ROTT (3,4), Tomas LOKAJICEK (1)

1: Institute of Geology of the Czech Academy of Sciences, Czech Republic

2: Institute of Geophysics of the Czech Academy of Science, Czech Republic

3: Faculty of Science, Charles University, Prague, Czech Republic

4: Správa železnic, státní organizace, Czech Republic

Physical Modeling in Rock Mechanics and Rock Engineering

Herbert H. EINSTEIN

Massachusetts Institute of Technology, United States of America

The Tauernmoos pressure tunnel: a multidisciplinary approach to verify and ensure design rock mass conditions during construction

Andreas MAYER (1), Franz REITER (2), Andreas FREUDENTHALER (3), Miroslav MARENCE (4)

1: Büro für Geologie und Hydrogeologie ZT GMBH, Austria

2: ÖBB Infrastruktur AG

3: AFRY Austria GMBH

4: AFRY Austria GMBH

4D imaging of crack evolution and failure mode in 3DP rock-like samples under uniaxial compression by using in-situ micro-ct technology

Yulong SHAO, Jineon KIM, Jae-Joon SONG

all: Seoul National University, Korea, Republic of South Korea

Mechanical properties of 3D printed sandstone analogue with different binder rates

Minoru SATO (1), Takato TAKEMURA (2), Daisuke ASAHINA (3)

1: Central Research Institute of Electric Power Industry, Japan

2: Geomechanics Lab., Department of Earth and Environmental Sciences, Nihon University

3: Geological Survey of Japan, AIST

Effect of cyclic thermal loading on a carbonate rock: implications for thermal energy storage

Katharina Meta NEUMANN, Mandy DUDA, Tobias BACKERS

all: Ruhr-Universität Bochum, Germany

Experimental and numerical study on the creep behavior of a rock mass with filled joints

Maximiliano R. VERGARA (1,2,3), Ana LIBREROS (4), Karl BALTHASAR (3)

1: Skava consulting SA, Providencia, Chile

2: Skava consulting ZT, Salzburg, Austria

3: Institute of Soil Mechanics and Rock Mechanics, Karlsruhe Institute of Technology, Karlsruhe, Germany

4: Ed. Züblin AG, Zentrale Technik - Tunnel Engineering, Stuttgart, Germany

Direct shear tests on large natural and artificially induced rock fractures in a new laboratory equipment

Lars JACOBSSON, Mathias FLANSBJER, Jörgen LARSSON

all: RISE Research Institutes of Sweden AB, Sweden

*** POSTER PRESENTATIONS ***

(The contributions listed below are NOT in the chronological order of poster presentation. NOT all of them will be presented.)

Estimation models for deformability of marlstones based on their physical and mechanical properties and for variable load range

Srđan KOSTIĆ

Jaroslav Cerni Water Institute, Serbia

Optimization of UCS testing of limestone rock

Jørgen Steen STEENFELT

COWI, Denmark

Study on the mechanical characteristics of rock-concrete Brazilian disc based on DEM

Yadong XUE (1), Lushan SHU (1), Kai SHEN (2), Yongfa GUO (3)

1: Department of Geotechnical Engineering College of Civil Engineering, Tongji University, Shanghai, China

2: School of Civil Engineering, Central South University, Changsha, China

3: China Railway Eryuan Kunming Survey, Design and Research Institute Co., Ltd, Kunming, China

The Bologna interpretation of rock bridges: what is real and what has the potential to be real?

Davide ELMO

University of British Columbia, Canada

Development and functional verification of an ultra-deep drilling core geological environment true triaxial apparatus

Xiwei ZHANG, Lei SHI

all: Northeastern University, Shenyang, China

Temperature- and pressure-dependent dynamic and static elastic moduli

Jian YANG (1,2), Li-Yun FU (1,2)

1: Shandong Provincial Key Laboratory of Deep Oil and Gas, China University of Petroleum (East China)

2: School of Geosciences, China University of Petroleum (East China)

A practical approach to determining the basic friction angle of natural and rough discontinuities in carbonate rock slopes

Zhen YE (1), Qian LIU (2), Qiang XU (1), Xiujun DONG (1), Feng PU (1)

1: State Key Laboratory of Geohazard Prevention and Geoenvironment Protection, Chengdu University of Technology, China

2: Graz University of Technology, Austria

Study on the relationship between uniaxial compressive strength and elastic properties of limestone with various sample diameter

Hasan ARMAN, Safwan PARAMBAN

all: United Arab Emirates University, College of Science, Geosciences Department, Al Ain, United Arab Emirates

Behaviour of a pre-defined crack propagating under dynamic tensile loading condition

Rabin Kumar SAMAL, Gangavarapu Teresa DES DE MONA, Sunita MISHRA

all: Department of Mining Engineering, IIT Kharagpur, India

Numerical Analysis of Thermo-Mechanical Characterization of Indian Sandstone under Dynamic Compressive Loading Condition

Abhishek MOHAPATRA, Anjali KUMARI, Sunita MISHRA

all: Department of Mining Engineering, IIT Kharagpur, India

Evaluation of the dilatant behavior of a crystalline rock using full-field optical imaging and ultrasonic monitoring

Deepanshu SHIROLE (1), Gabriel WALTON (2), Ahmadreza HEDAYAT (3), Sankhaneel SINHA (4)

1: Indian Institute of Technology Delhi, India

2: Department of Geology and Geological Engineering, Colorado School of Mines, Golden, USA

3: Department of Civil and Environmental Engineering, Colorado School of Mines, Golden, USA

4: Department of Geology and Geological Engineering, Colorado School of Mines, Golden, USA

Hydromechanical characterization of Château-Landon chalk behavior

Danielle PAJIEP (1,2), Jian-Fu SHAO (2), Nathalie CONIL (1), Mountaka SOULEY (1), Philippe GOMBERT (1)

1: National Institute for Industrial Environment and Risks

2: University of Lille

The dynamic tensile strength and failure characteristics of transversely isotropic shale under impact Brazilian test

Lichun JIA, Qicong XU, Chongjun HUANG, Lei LI, Xiao WEI, Changhong ZHOU

all: Drilling & Production Technology Research Institute, CNPC Chuanqing Drilling Engineering Company Limited, People's Republic of China

Evaluation of different methods for determining rock masses stiffness

Neil BAR (1,2), Wulf SCHUBERT (1)

1: Graz University of Technology, Austria

2: Gecko Geotechnics LLC, Saint Vincent and the Grenadines

Shear strength determination of very rough and partially filled extension fractures in thick-bedded and karstified limestones

Petar HRŽENJAK (1), Ivana DOBRILOVIĆ (1), Dražen NAVRATIL (2), Biljana KOVAČEVIĆ ZELIĆ (1)

1: University of Zagreb, Faculty of Mining, Geology and Petroleum Engineering, Croatia

2: Croatian Geological Survey, Croatia

Estimation of cutting force considering intermediate dynamic rock strength using multiple linear regression

Yudhidya WICAKSANA (1), Suseno KRAMADIBRATA (2), Seokwon JEON (3)

1: Institut Teknologi Bandung, Indonesia

2: Bumi Resources Minerals, Indonesia

3: Seoul National University, Republic of Korea

Study of stress-dependent dynamic properties of jointed rock using resonant column apparatus

Sakshi ROHILLA, Resmi SEBASTIAN

all: Indian Institute of Technology Ropar, India

Low-temperature Thermal diffusion in Rocks

Zhiqiang LIU (1,2), Linlin WANG (1,2), Shihui YU (1,2)

1: China University of Petroleum-Beijing, People's Republic of China

2: State Key Laboratory of Petroleum Resources and Prospecting, China University of Petroleum, Beijing, China 2 China University of Petroleum, Beijing, China

Predicting strength loss of igneous rocks treated with microwave energy

Sair KAHRAMAN (1), Ahmet Niyazi CANPOLAT (2), Mustafa FENER (3)

1: Hacettepe University, Ankara, Türkiye

2: General Directorate of Mineral Research and Explorations, Ankara, Türkiye

3: Geological Engineering Department, Ankara University, Ankara, Türkiye

Shear failure and fracturing of horizontally layered shale

Marte GUTIERREZ (1), Daisuke KATSUKI (1), Runar NYGRAARD (2)

1: Colorado School of Mines, United States of America

2: Oklahoma University, United States of America

Effect of rock stiffness change on acoustic emission

Vladimir FRID

Sami Shamoon College of Engineering‎, Israel

Proposition of an accelerated cycling procedure for rocks with low porosity

Natália de Faria SILVA, Eduardo Antonio Gomes MARQUES, Carolina Crissafe dos Santos LEMOS, Carolina de Souza Pires COSTA

all: Universidade Federal de Viçosa, Brazil

Back-analysis of rock mass parameters at the Semmering Base Tunnel based on the convergence confinement method

John William de Bradnee MARTIN (1), Alexander KLUCKNER (1), Gerold LENZ (2), Thomas MARCHER (1)

1: Institute of Rock Mechanics and Tunnelling, Graz University of Technology, Graz, Austria

2: iC consulenten ZT GesmbH, Austria

Size effect and correlation with hardness of the microscopic fracture toughness of the minerals of granite

Kiyotoshi SAKAGUCHI, Yuta SHIROSAWA

all: Tohoku University, Japan

Determination of an empirical relations between mode I fracture toughness using CB and SCB specimens and Brazilian tensile strength of rocks

Leona VAVRO (1), Martin VAVRO (1), Minami KATAOKA (2)

1: The Czech Academy of Sciences, Institute of Geonics

2: The University of Tokyo, Department of Systems Innovation

Effects of weathering on geotechnical properties of basalt rocks from the Vidarbha region in Maharashtra, India

Anjan PATEL (1), Srikanth KANDALAI (1), Nithin Jacob JOHN (1), Shrirang PANDE (2)

1: Visvesvaraya National Institute of Technology, Nagpur, India

2: M/s Standard Precision Testing Laboratory, Khadgaon Road, Lava, Nagpur-23, India

Physical-mechanical properties of a granite used in the UNESCO World Heritage of the north of Portugal after high-temperature pretreatment

Roberto TOMÁS (1), Miguel CANO (1), Luis F. PULGARÍN (1), Vicente BROTONS (1), David BENAVENTE (1), Tiago MIRANDA (2), Graça VASCONCELOS (2)

1: UNIVERSIDAD DE ALICANTE, Spain

2: ISISE, Departamento de Engenharia Civil. Universidade do Minho, Portugal

The combined effects of water saturation and strain rate on crack initiation and damage stress of rock

Jun ZHU (1), Jianhui DENG (2)

1: Key Laboratory of Mountain Hazards and Earth Surface Process, Institute of Mountain Hazards and Environment, Chinese Academy of Sciences (CAS), Chengdu,China

2: College of Water Resources and Hydropower, Sichuan University, Chengdu, China

Experimental evaluation of anisotropic dynamic and static elastic modulus in deep Longmaxi shale

Lichun JIA, Hu DENG

all: Drilling & Production Technology Research Institute, CNPC Chuanqing Drilling Engineering Company Limited, People's Republic of China

The tensile strength and failure characteristics of transversely isotropic deep Longmaxi shale under Brazilian test

Lichun JIA, Qicong XU

all: Drilling & Production Technology Research Institute, CNPC Chuanqing Drilling Engineering Company Limited, People's Republic of China

Characterization of Poisson’s ratio and Elastic Modulus of granitic rocks: from micro-crack initiation to failure

Samad NARIMANI GHOURTLAR (1), Seyed Morteza DAVARPANAH (1), László KOVÁCS (2), Balázs VÁSÁÁRHELYI (1)

1: Budapest University of Technology and Economics, Hungary

2: RockStudy Ltd, Pécs, Hungary

Thermo-hydro-mechanical coupling Triaxial Test Method for Rock with Fracture and Its Application

Haiyang ZHANG (1,2), Feiyang LIU (1,2), Jian LIU (1,2), Xingguang ZHAO (1,2), Ju WANG (1,2)

1: Beijing Research Institute of Uranium Geology, Beijing, China

2: CAEA Innovation Center for Geological Disposal of High-Level Radioactive Waste, Beijing, China

A Mathematical Model for Shear Stiffness and Dilation for Saw-Tooth Joints under CNL Conditions

Sujeet BHARTI (1), Rakesh KUMAR (1), Debasis DEB (1), K. U. M. RAO (1,2)

1: Indian Institute of Technology Kharagpur, India

2: National Institute of Technology Rourkela, India

A statistical damage constitutive model based on residual strength and Drucker-Prager criterion

Chongyuan ZHANG (1), Hongtao LIU (1), Ping ZENG (2), yang XIA (2), Liang WEN (1), Bo ZHOU (1), Bao ZHOU (1)

1: PetroChina Tarim Oilfield Company, Korla, China

2: China University of Petroleum, Beijing, China

Experimental and Numerical Investigations on Bi-axial Loading of Sandstone Brazilian Disks

Reza MOTTAGHI, Zhongwei CHEN, David J. WILLIAM, Mehdi SERATI

all: The University of Queensland, Brisbane, Australia

Effect of temperature on the mechanical behavior and acoustic emission characteristics of a rock – like material

Lucía CONDE-FERNÁNDEZ (1), Víctor MARTÍNEZ-IBÁÑEZ (2), Martina-Inmaculada ÁLVAREZ-FERNÁNDEZ (1), María-Elvira GARRIDO-DE LA TORRE (2), Celestino GONZÁLEZ-NICIEZA (1), Carlos HIDALGO-SIGNES (2)

1: University of Oviedo, Spain

2: Universitat Politècnica de València

Understanding the Microscopic Mechanisms of the bi-modular behavior of rock

Samarjeet KUMAR, Aditi NUWAL, Shantanu Kumar PATEL

all: Indian Institute of Technology Kharagpur, India

Thermal degradation study of Westerly granite by ultrasonic sounding and mercury porosimetry

Tomas LOKAJICEK (1), Daniela RIMNACOVA (2), Richard PRIKRYL (3), Ali AMINZADEH (1), Matej PETRUZALEK (1)

1: Institute of Geology of the Czech Academy of Sciences, Czech Republic

2: Institute of Rock Structure and Mechanics, Academy of Sciences of the Czech Republic

3: Faculty of Science, Charles University in Prague, Czech Republic

Porosity of source rocks eligible for interaction with gases and liquids

Daniela ŘIMNÁČOVÁ (1), Dominik VÖRÖŠ (1), Vendula NATHEROVÁ (1,2), Richard PŘIKRYL (2), Tomáš LOKAJÍČEK (3)

1: Institute of Rock Structure and Mechanics of the Czech Academy of Sciences, Czech Republic

2: Institute of Geochemistry, Faculty of Science, Charles University in Prague, Czech Republic

3: Institute of Geology of the Czech Academy of Sciences, Czech Republic

Influence of grain-size on damage in thermally treated granites- A Review and Novel quantification techniques

Rahul Rooplal KATRE, Nikhil Ninad SIRDESAI, Sandeep PANCHAL

all: Department of Mining Engineering, Visvesvaraya National Institute of Technology, Nagpur, Maharashtra, India

Full-field strain evolution in Brazilian Disc tests using Digital Image Correlation and Adelaide University Indirect Tensile strength test (AUSBIT)

Rupesh Kumar VERMA (1), Giang Dinh NGUYEN (2), Murat KARAKUS (2), Abbas TAHERI (3)

1: Aurelia Metals, New South Wales, Australia.

2: University of Adelaide, Adelaide, Australia

3: Queen's University Kingston, Ontario, Canada

Influence of shape surface on the actual stress distribution generated along the contact during the uniaxial compressive strength test

María RAMÍREZ-BERASATEGUI (2), Diego-José GUERRERO-MIGUEL (1), Ramón GUTIÉRREZ-MOIZANT (2), María-Belén PRENDES-GERO (1), Martina-Inmaculada ÁLVAREZ-FERNÁNDEZ (1)

1: DinRock Group. Universidad de Oviedo.

2: Universidad Carlos III de Madrid

Geomechanical characterization of two granites to establish an experimentally based benchmark for numerical simulation – a laboratory study

Lucas Conrad WITTE, Mandy DUDA, Murat AYDIN, Hossein ASGHARI CHEHREH, Tobias BACKERS

all: Ruhr-University Bochum, Germany

Point Load Strength Index of a limestone exposed to high temperatures and correlation with uniaxial compressive strength

María Elvira GARRIDO (1), José B. SERÓN-GAÑEZ (1), Víctor MARTÍNEZ-IBÁÑEZ (1), Carlos HIDALGO-SIGNES (1), Roberto TOMÁS (2), Martina-Inmaculada ÁLVAREZ-FÉRNANDEZ (3)

1: Universitat Politècnica de València, Spain

2: Universidad de Alicante

3: Universidad de Oviedo

Modified transient plane source measurements of Olkiluoto migmatite

Risto KIURU (1), Sophie HAAPALEHTO (2)

1: Oy Rock Physics Finland Ltd, Finland

2: Posiva Oy, Finland

Mechanical properties of carbonate fault rocks

Vasileios KALLIMOGIANNIS (1), Charalampos SAROGLOU (1,2)

1: National Technical University of Athens, Greece

2: University of Leeds, UK

Classification of weak, carbonate fault rocks

Vasileios KALLIMOGIANNIS (1), Charalampos SAROGLOU (1,2)

1: National Technical University of Athens, Greece

2: University of Leeds, UK

Variation in the drilling rate in thermally treated limestones through penetration-time curves from Sievers’ J-miniature drill tests

Víctor MARTÍNEZ-IBÁÑEZ (1), Carlos HIDALGO SIGNES (1), María Elvira GARRIDO (1), José Bernardo SERÓN GÁÑEZ (1), Roberto TOMÁS (2), Celestino GONZÁLEZ-NICIEZA (3)

1: Universitat Politècnica de València, Spain

2: Universidad de Alicante, Spain

3: Universidad de Oviedo, Spain

Effect of scale and in-situ stress ratio on the deformation modulus of rock mass around tunnels

Sai Srujan Kumar CHALAVADI (1), Mahendra SINGH (1), Yogendra SINGH (1), Jaysing CHOUDHARI (2)

1: Indian Institute of Technology Roorkee, Roorkee, India

2: Fortescue Metals Group Ltd, East Perth, West Australia

New testing equipment to study dynamic fracture of rock and cement-based materials subjected to the action of roadheaders

Diego-José GUERRERO-MIGUEL (1), Martina-Inmaculada ÁLVAREZ-FERNÁNDEZ (1), María-Belén PRENDES-GERO (1,2), Celestino GONZÁLEZ-NICIEZA (1), Covadonga BETEGÓN-BIEMPICA (2), Emilio MARTÍNEZ-PAÑEDA (3)

1: DinRock Group, University of Oviedo

2: Construction and Manufacturing Engineering Department, University of Oviedo

3: Department of Civil and Environmental Engineering, Imperial College London

Correlating uniaxial compression strength and static Young's modulus with Schmidt hardness for prasinites

Dimitrios KOTSANIS, Pavlos NOMIKOS

all: National Technical University of Athens, Greece

Comparison of conventional and cyclic oedometer swelling tests on rock specimens

Maximiliano R. VERGARA (1,2,3)

1: Skava consulting SA, Providencia, Chile

2: Skava consulting ZT, Salzburg, Austria

3: Institute of Soil Mechanics and Rock Mechanics (IBF), Karlsruhe Institute of Technology (KIT), Karlsruhe, Germany

Practical estimation of veinlets shear strength properties in hypogene rock mass

Esteban HORMAZABAL, Andrea RUSSO

all: SRK Consulting Chile, Chile

Effect of loading rate on dynamic mixed mode I/II fracture behavior in rock

Peiwang CAO (1), Tao ZHOU (2), Rui LI (1), Jianbo ZHU (2)

1: State Key Laboratory of Hydraulic Engineering Simulation and Safety, School of Civil Engineering, Tianjin University, Tianjin, China

2: Institute of Deep Earth Sciences and Green Energy, College of Civil and Transportation Engineering, Shenzhen University, Shenzhen, China

Size-dependent and Anisotropic Coulomb failure criterion

Yun ZHAO (1), Brijes MISHRA (2), Qingwen SHI (3)

1: Department of Mineral Resources, Hubei Xingfa Chemicals Group Co., Ltd, Yichang, China

2: University of Utah, United States of America

3: Department of Mining Engineering, North China Institute of Science and Technology, Langfang, China

*** ORAL PRESENTATIONS ***

(The contributions listed below are NOT in the chronological order of presentation.)

Large rock caverns for heat storage in district heating networks – A comparative study for the city of Salzburg

Sophie MESSERKLINGER (1), Mikkel SMAADAHL (2), Daniel PÖTSCH (3), Carlo RABAIOTTI (2), Erich SAURER (4)

1: University of Applied Sciences Upper Austria, Austria

2: Eastern Switzerland University of Applied Sciences, Switzerland

3: Salzburg AG, Salzburg, Austria

4: Skava Consulting ZT GmbH, Salzburg, Austria

Mechanical stability of a salt cavern used for hydrogen storage

Hippolyte DJIZANNE (1), Benoit BROUARD (2), Grégoire HÉVIN (3)

1: INERIS, France

2: Brouard Consulting

3: Storengy

What can be the future of underground storages in the context of green energy? - Geomechanical aspects

Philippe VASKOU (1), Nicolas GATELIER (2)

1: University of Cergy-Paris, France

2: Geostock, Rueil-Malmaison, France

Numerical Modelling of Induced Seismicity along a Fault during CO2 Injection into a Subsurface Reservoir

James Edward John BURTONSHAW, Adriana PALUSZNY, Robert ZIMMERMAN

all: Imperial College London, United Kingdom

A guidance for the optimal site location of Cavern Thermal Energy Storage (CTES)

Stefan ZELZER, Thomas GEISLER, Thomas MARCHER

all: Institute of Rock Mechanics and Tunnelling, Graz University of Technology, Austria

Hybrid CO2 based thermo-mechanical underground energy storage - a numerical geomechanical review

Daniel Hubert BÜCKEN (1,2), Tobias BACKERS (1)

1: Ruhr-University Bochum, Germany

2: geomecon GmbH, Berlin, Germany

*** POSTER PRESENTATIONS ***

(The contributions listed below are NOT in the chronological order of poster presentation. NOT all of them will be presented.)

Shale gas accumulation mechanism in the shallow burial depth: Insights from mechanical properties and methane adsorption capacity

Duo WANG (1,2), Xiao LI (1), Hang YUAN (3), Guanfang LI (1)

1: Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing, China

2: SINOPEC Petroleum Exploration and Production Research Institute, Beijing, China

3: School of Geophysics and Information Technology, China University of Geosciences, Beijing, China

Thermomechanical Behaviour of Rock Salt

Sasan MORAVEJ (1), Mehdi SERATI (1), Mojtaba BAHAADDINI (2), David WILLIAMS (1)

1: The University of Queensland, Australia

2: Shahid Bahonar University of Kerman, Iran

The fracture behavior of rock salt under present gas pressure in mechanical extension experiments

Lukas BAUMGÄRTEL, Feline KÖRNER

all: Leibniz University Hannover, Hannover, Germany

Conversion of existing natural gas storage caverns for hydrogen storage – some selected aspects to be considered

Karl-Heinz LUX, Tianjie PAN, Ralf WOLTERS, Jörg FEIERABEND

all: Clausthal University of Technology, Germany

Investigating and evaluating the geomechanics of geological storage of hydrogen from methane decomposition

Manouchehr SANEI, Mohammad FATEHI MARJI

all: Department of Mining and Metallurgical Engineering, Yazd University, Yazd, Iran

Experimental study on creep behavior of rock salt under complex stress paths

Zongze LI (1,2), Jinyang FAN (1), Marion FOURMEAU (2), Chao DU (1), Deyi JIANG (1), Daniel NELIAS (2)

1: State Key Laboratory of Coal Mine Disaster Dynamics and Control, Chongqing University, China

2: Univ Lyon, INSA Lyon, CNRS, LaMCoS, UMR5259, Villeurbanne, France

*** ORAL PRESENTATIONS ***

(The contributions listed below are NOT in the chronological order of presentation.)

The influence of a heavy storm on a slope subject to rockfall phenomena: the Bazena case study

Battista TABONI (1), Gessica UMILI (1), Anna Maria FERRERO (1), Simone BLANC (2), Filippo BRUN (2), Stefano BRUZZESE (2), Luca M. ALBERTELLI (3), Iuri D. TAGLIAFERRI (3)

1: University of Turin, Department of Earth Sciences, Italy

2: University of Turin, Department of Agricultural, Forest and Food Sciences, Italy

3: Land&Cogeo

Comparing different rock mass classifications using field and point cloud data on a rock cut

Dragana SLAVKOVIĆ (1), Aljoša MITIĆ (2), Miloš MARJANOVIĆ (3)

1: Institute of transportation CIP, Nemanjina6/IV, Belgrade, Serbia

2: Central road laboratory LLC, Zivorada Petrovica 13, Novi Sad, Serbia

3: University of Belgrade, Faculty of Mining and Geology, Djusina 7, Belgrade, Serbia

Rock slope stability management along the road by machine learning through databasing disaster prevention records

Hiroyuki HONDA (1), Yasuhiro MITANI (1), Hisatoshi TANIGUCHI (1), Ibrahim DJAMALUDDIN (2), Yurino KAWAURA (1)

1: Kyushu University, Japan

2: Hasanuddin University, Indonesia

Discontinuum modelling of slope instability as a support tool for risk management

Marco BARLA (1), Santina AIASSA (2), Francesco ANTOLINI (2), Alessandra INSANA (1), Andrea PERINO (2)

1: Dept. Of Structural, Geotechnical and Building Engineering, Politecnico di Torino, Italy

2: Geosolving srl, Torino, Italy

A Parametric Study Illustrating the Effects of Moderately Anisotropic Rock Strength on the Stability of Large Slopes using Limit Equilibrium Analysis

Ryan Alexander ZIEBARTH (1), Andrew G. CORKUM (1), Ian R. STILWELL (2), Derek KINAKIN (2)

1: Dalhousie University, Canada

2: BGC Engineering Inc

The Correct Way to use the Hoek-Brown Strength Criterion for Slope Stability Analysis on the Example of Vals (Tyrol/Austria)

Mariella ILLEDITSCH (1,2), Alexander PREH (1,2), Johann Thomas SAUSGRUBER (3)

1: pi Geotechnik ZT GmbH, Austria

2: Vienna University of Technology, Austria

3: Federal Ministry Republic of Austria - Agriculture, Forestry, Regions and Water Management, Austria

Developing a Digital Twin: A Semi-Brittle Slope Failure Case Study from Pueblo Viejo Gold Mine

Miosoty BAUTISTA (1), Juan Carlos COBIAN SALAS (1), Jessica LOPEZ (1), Neil BAR (2), Niccolò COLI (3), Francesco COPPI (3), Andreas GAICH (4), Markus PÖTSCH (4), Miriam BAUMGARTNER (4), Alison MCQUILLAN (5)

1: Barrick Gold Corporation

2: Gecko Geotechnics LLC

3: IDS GeoRadar SRL

4: 3GSM GmbH

5: Rocscience Inc

Sub-critical crack growth based time-dependent deformation model and its application to open-pit slope stability

Tao XU (1), Zhiguo LI (1), Tianhong YANG (1), Xiaobing ZHENG (1), Wancheng ZHU (1), Tengfei FU (2)

1: Northeastern University, People's Republic of China

2: CSCEC-TAISEI Construction Ltd., Beijing, China

Interaction between tunnels and slopes. Analysis of weak rock masses considering the Hoek-Brown failure criterion

Carlos Luis GARRIDO GARRIDO, Sergio SÁNCHEZ RODRÍGUEZ, Paula DEL POZO GARCÍA

all: AECOM. Enterprise Capabilities Europe

Activity and kinematic behaviors of gravitational slope deformation in the slate belt of Taiwan

Cheng-Han LIN, Ming-Lang LIN

all: Department of Civil Engineering, National Taiwan University, Taiwan

Geotechnical and geophysical investigation of a rock mass for the design check of an ornamental stone quarry

Maria Teresa CARRIERO (1), Cesare COMINA (2), Anna Maria FERRERO (2), Maria Rita MIGLIAZZA (1), Battista TABONI (2), Gessica UMILI (2), Federico VAGNON (1), Sergio Carmelo VINCIGUERRA (2)

1: Polytechnic of Turin, Turin, Italy

2: University of Turin, Turin, Italy

*** POSTER PRESENTATIONS ***

(The contributions listed below are NOT in the chronological order of poster presentation. NOT all of them will be presented.)

Latest developments to increase the quality of flexible rockfall protection barriers

Armin RODUNER, Helene LANTER, Manuel EICHER

all: Geobrugg AG, Switzerland

Slope safety assessment based on dynamic anchor force

Zhibo JIA (1), Yan BAO (1), Lianjin TAO (1), Jin BIAN (2), Hu WEN (3), Haixiang ZHANG (3)

1: The Key Laboratory of Urban Security and Disaster Engineering, Ministry of Education, Beijing University of Technology, Beijing, China

2: College of Engineering, Guangdong Ocean University, Zhanjiang, China

3: Beijing University of Technology, Beijing, China

Use of representative values of geometrical properties of discontinuities in rock slope verifications according to EC7

Javier GONZÁLEZ-GALLEGO, José ESTAIRE, María SANTANA

all: CEDEX, Spain

Capturing the roughness of discontinuity traces in the field with high accuracy: the effect of photograph resolution

Clarence BUTCHER (1), Olivier BUZZI (1), Anna GIACOMINI (1), Robert BERTUZZI (2), Vaughan GRIFFITHS (3)

1: The University of Newcastle, Australia

2: PSM, Engineering Consultants

3: Colorado School of Mines

Rock slope design and residual risk management for Aktogay Copper Mine, Kazakhstan

Nurkhair TELEU, Neil BAR, Herman ZLOBIN, Philipp MOHR

all: KAZ MInerals, Kazakhstan

A critical look to the practical use of Rock Mass Rating (RMR) and Slope Mass Rating (SMR)

Miguel CANO (1), José Luis PASTOR (1), Roberto TOMÁS (1), Adrián RIQUELME (1), Luis JORDÁ (2), José SERÓN (3)

1: University of Alicante, Spain

2: Universidad Politécnica de Madrid, Spain

3: Universitat Politècnica de València, Spain

Comparative study of finite and distinct element methods for stability assessment of a jointed rock slope

Kripamoy SARKAR, Avishek DUTTA

all: Indian Institute of Technology (Indian School of Mines) Dhanbad, Jharkhand, India

Rock cut slope excavated for Settling basins of Seti Khola Hydropower Project

Krishna Kanta PANTHI (1), Chhatra Bahadur BASNET (2)

1: Norwegian University of Science and Technology (NTNU), Trondheim, Norway

2: Clean Energy Consultant Pvt Ltd, Kathmandu, Nepal

Modelling the shear behavior of clean rock joints using Adaptive Neuro-Fuzzy Inference Systems

Yago Machado Pereira de MATOS (1), Silvrano Adonias DANTAS NETO (2), Guilherme de Alencar BARRETO (2)

1: University of Brasilia, Brazil

2: Federal University of Ceará, Brazil

Rock Mechanics Characterization of Columnar Sandstone of Cerro Koi (Paraguay) and Some Slope Stability Issues of the Associated Open Pits

Ömer AYDAN (1), Reşat ULUSAY (2), Jose PAVON (3), Nazli Tunar OZCAN (2)

1: University of the Ryukyus, Okinawa, Japan

2: Hacettepe University, Ankara, Japan

3: Jose Pavon & Asociados, Asuncion, Paraguay

Evaluation of Rock Mass Quality using Unmanned Aerial Vehicle Survey for Slope insability Assessment

Muhammad JUNAID (1), Rini Asnida ABDULLAH (2), Radzuan SA'ARI (2)

1: National University of Science and Technology

2: Universiti Teknologi Malaysia

Assessment of structurally-controlled slope failure in a steeply dipping Iron ore mine

Suryajyoti NANDA, Satyam CHOUDHURY, Shantanu PATEL

all: Indian Institute of Technology Kharagpur, West Bengal, India

A reliability-based design approach for geotechnical domain modelling in pit slope design

Amoussou ADOKO, Hayes ANYASODOR

all: School of Mining and Geosciences, Nazarbayev University, Kazakhstan

Effect of blast damage zones on the stability of a Himalayan highway cut-slope ₋ continuum modelling approach

Som NATH (1,2), Ashok Kumar SINGH (3), Harsh Kumar VERMA (2), Nachiketa RAI (1)

1: Indian Institute of Technology Roorkee, India

2: CSIR-Central Institute of Mining and Fuel Research, Regional Research Centre Roorkee (UK) India

3: CSIR-Central Institute of Mining and Fuel Research, Regional Research Centre Bilaspur (CG) India

Evaluation of weathering effects by CIELAB color space and image analysis technique for interbedded metasedimentary rock in the northern region of Peninsular Malaysia

Mazlina RAZALI (1,2), Mohd Ashraf MOHAMAD ISMAIL (1), Sharan Kumar NAGENDRAN (3), Zuraini ZAINAL (3), Hayato TOBE (4), Kensuke DATE (5), Yasuhiro YOKOTA (5), Hamzah HUSSIN (6)

1: School of Civil Engineering, Engineering Campus, Universiti Sains Malaysia, Penang, Malaysia

2: Centre for Civil Engineering, Universiti Teknologi MARA, Cawangan Pulau Pinang, Permatang Pauh Campus, Pulau Pinang, Malaysia

3: Centre of Excellence for Engineering and Technology (CREaTE), Public Works Department (JKR), Alor Gajah, Melaka, Malaysia

4: Rock Mechanics and Hydro-geology Group, Kajima Technical Research Institute, Kajima Corporation, Japan

5: Kajima Technical Research Institute Singapore, Kajima Corporation, Singapore

6: Department of Geoscience, Faculty of Earth Science, Universiti Malaysia Kelantan, Jeli, Kelantan

Site specific joint spacing distribution of roadcut slopes in a selected stretch of national highway in Indian Garhwal Himalayas

Lal HRUAIKIMA (1), Mahendra SINGH (1), Sarada Prasad PRADHAN (1), Jaspreet SINGH (2)

1: Indian Institute of Technology Roorkee, Roorkee, India

2: Simon Fraser University, Burnaby, BC, Canada

*** ORAL PRESENTATIONS ***

(The contributions listed below are NOT in the chronological order of presentation.)

Some thoughts on Rock Mechanics and Rock Engineering on Mars

Ömer AYDAN

University of the Ryukyus, Okinawa, Japan

How to form competent rock engineers

Michael ALBER (1), Leandro R. ALEJANO (2), Tobias BACKERS (3)

1: Alber GeoMechanics/ Ruhr-University Bochum, Dortmund / Bochum, Germany

2: University of Vigo, Dept. of Natural Resources & Environmental Engineering, Vigo, Spain

3: Ruhr-University Bochum, Rock Mechanics and Engineering Geology, Bochum, Germany

Experimental assessment of high temperature-induced changes on frictional behavior of planar rock joints

Gustavo André PANEIRO (1), Ignacio PÉREZ-REY (2), Xian ESTÉVEZ-VENTOSA (2), Leandro R. ALEJANO (2)

1: DER/CERENA, Técnico Lisboa, ULisboa, Portugal

2: CINTECX, Grupo de Xestión Segura e Sostible de Recursos Minerais, Universidade de Vigo, Spain

Stability analysis of a rock slope: Fully-probabilistic approach

Renato PEREIRA, José MURALHA, Luís LAMAS

all: LNEC, Portugal

Application of empirical rockfall classification methods to risk management in an Alpine valley road

Maria Teresa CARRIERO (1), Maria Rita MIGLIAZZA (1), Claudio SCAVIA (1), Leandro R. ALEJANO (2)

1: Department of Structural, Building and Geotechnical Engineering, Politecnico di Torino, Italy

2: Department of Natural Resources and Environmental Engineering, University of Vigo, Spain

A study on the correlation between Hoek–Brown mi constant and Brinell hardness of intact rocks

Anastasios TSIKRIKIS (1), Vassilis MARINOS (2), Theodosios PAPALIANGAS (1)

1: Department of Environmental Engineering, Hellenic International University, Thermi, Greece

2: Department of Civil Engineering, National Technical University of Athens, Greece

Skavica Hydropower plant, one of the most important energetical projects to be constructed in Albania

Ardita MALAJ, Skender ALLKJA, Iljana KERO, Julian BELLIU, Besian XHAGOLLI

all: ALTEA & Geostudio 2000, Albania

Mechanical behavior of granitic rocks under elevated temperatures: implications for underground radioactive waste disposal safety and tunnelling

Andor NÉMETH, Ákos TÖRÖK

all: Budapest University of Technology and Economics, Faculty of Civil Engineering, Department of Engineering Geology and Geotechnics, Budapest, Hungary