Conference Agenda

An Assessment Strategy for the Evaluation of Radionuclide Migration from Potential Repositories in Claystone

Christoph Behrens, Merle Bjorge, Julia Dose, Marlene Gelleszun, Niklas Meindl, Florian Panitz, Shorash Miro, Alexander Renz, Robert Seydewitz, Wolfram Rühaak, Stephanie Zeunert, Phillip Kreye

Bundesgesellschaft für Endlagerung mbH, Eschenstraße 55, 31224 Peine, Germany

CIGEO project - Analysis of the effect of segmental lining joints on the tunnel mechanical behaviour during the operational phase and over the long term

Marco Camusso¹, Minh-Ngoc Vu²

¹ITASCA Consultants S.A.S., Lyon, France; ²ANDRA, Châtenay-Malabry, France

Adapting disposal concepts to reflect emerging UK geologiccal environments

Matthew Edward Kirby, Simon Norris

Nuclear Waste Services, United Kingdom

New data on the compositional-structural characteristics of the Opalinuston Formation from Southern Germany: Facies-based investigations and mineralogical analyses

Tilo Kneuker¹, Thomas Mann¹, Reiner Dohrmann^1,2, Kristian Ufer¹, Jochen Erbacher¹, André Bornemann¹, Bernhard Schuck¹, Lukas Pollok¹

¹Federal Institute for Geosciences and Natural Resources, Hannover, Germany; ²State Authority for Mining, Energy and Geology (LBEG), Hannover, Germany

Effects of ionic strength on cation exchange selectivities of Ca(II), Mg(II), K(I) for Na(I) in compacted and dispersed montmorillonite

Ryo Yasuda¹, Shingo Tanaka¹, Daisuke Hayashi¹, Hitoshi Owada¹, Tomoko Ishii³, Yukinobu Kimura²

¹Radioactive Waste Management Funding and Research Center, Japan; ²Obayashi Corporation Co., Ltd.; ³Taiheiyo Consultant Co., Ltd

Geochemical investigation of veins and evidence for paleo fluid flow in Opalinus Clay

Lukas Aschwanden¹, Nathan Looser², Martin Mazurek¹, Thomas Gimmi^1,3, Daniel Traber⁴

¹University of Bern, Switzerland; ²ETH Zürich, Switzerland; ³Paul Scherrer Institut, Villigen, Switzerland; ⁴NAGRA, Wettingen, Switzerland

Determination of hydraulic parameters of deep low-permeability mudrocks using hydraulic packer test borehole data

Jean CROISE, Chao LI

INTERA Inc., Swiss Branch, Switzerland

Comparison of the clay mineralogy of fault and host rocks in the Opalinus Clay, Switzerland

Jonas Strasser, Susanne Gier, Kurt Decker

University of Vienna, Austria

CO2 Long-term Periodic Injection Experiment (Mont Terri URL): Introduction to the in-situ experiment and results of the first phase

Martin Ziegler¹, David Jaeggi¹, Rolf Kipfer², Antonio Pio Rinaldi³, Anne Obermann³, Jonas Junker³, Hua Shao⁴, Markus Furche⁴

¹Federal Office of Topography, Mont Terri Underground Rock Laboratory, St. Ursanne, Switzerland; ²Department Water Resources and Drinking Water, EAWAG, Dübendorf, Switzerland; ³Swiss Seismological Service, ETH Zurich, Zurich, Switzerland; ⁴Federal Institute for Geosciences and Natural Resources, Hannover, Germany

Extraction, Quantification and Isotopic Characterisation of Gases Dissolved in Porewater of Argillaceous Rocks - Method Comparison and Evaluation

Florian Eichinger¹, Laura Kennell², Niko Kampman³

¹Hydroisotop GmbH, Germany; ²NWMO, Canada; ³Nuclear Waste Services, UK

GeM-DB – A basis for planning surface exploration programs

Raphael Dlugosch, Thies Beilecke, Tilo Kneuker, Lukas Pollok, Lisa Richter, Nicole Schubarth-Engelschall, Ralf Semroch

Federal Institute for Geosciences and Natural Resources, Germany

Particle sizing with non-spherical particles

Christian Weber

BGR, Germany

Influence of Rescue Chambers on the Design of Geological Repositories in Clay

Felix Lehnen, Berit Rauscher

Brenk Systemplanung GmbH, Germany

MiniSandwich experiment – performance test in laboratory of a bentonite-based shaft sealing system

Christopher Rölke¹, Katja Emmerich², Eleanor Bakker², Hua Shao³

¹Institut für Gebirgsmechanik GmbH Leipzig (IfG), Germany; ²Karlsruher Institut für Technologie (KIT), Germany; ³Bundesanstalt für Geologie und Rohstoffe (BGR), Germany

Long term monitoring of physical and chemical parameters of a ce-mento-bentonitic filling material (CBFM) and of corrosion potential of a horizontal pipe made of carbon steel, submerged by the CBFM into a sealed cell of underground gallery

Ioannis IGNATIADIS¹, Yendoube Charles SANO MOYEME², Johan BERTRAND³, Stéphanie BETELU⁴

¹BRGM, France; ²BRGM, France; ³ANDRA, France; ⁴BRGM, France

Multi-scale modelling of the Sandwich experiment in Mont Terri

Larissa Friedenberg, Matthias Hinze, Klaus Wieczorek

Gesellschaft für Anlagen- und Reaktorsicherheit (GRS) gGmbH, Germany

Study on the construction of disposal scenarios and a tentative migration modelling of cesium for the final disposal of radioactive-ly contaminated waste outside of Fukushima Prefecture

Eriko Minari, Kazuo Yamada, Kazuto Endo

National Institute of Environmental Studies, Japan

All‑solid‑state reference electrode based on lithium lanthanum tita-nium oxide (LLTO) for the long term monitoring of nuclear waste dis-posals

Djouhar AOUBIDA^1,3, quoc-nghi PHAM³, Stéphanie BETELU¹, Johan BERTRAND², Nita DRAGOE³, Ioannis IGNATIADIS¹

¹BRGM (French Geological Survey), Orleans, France; ²ANDRA (French national radioactive waste management agency), Châtenay-Malabry, France; ³ICMMO (Institute of Molecular Chemistry and Materials), Orsay, France

Direct Mineral Content Prediction from Drill Core Images via Transfer Learning

Romana Boiger¹, Sergey V. Churakov^1,2, Ignacio Ballester Llagaria^1,3, Georg Kosakowski¹, Raphael Wüst^4,5, Nikolaos I. Prasianakis¹

¹Paul Scherrer Institute, Switzerland; ²University of Bern, Switzerland; ³ETH Zürich, Switzerland; ⁴Nagra, Switzerland; ⁵James Cook University, Australia

OpenWorkFlow - Open-source synthesis-platform for safety in-vestigations in the site selection process

Olaf Kolditz^1,4, Christoph Lehmann¹, Thomas Nagel², Christoph Behrens³, Alexander Renz³, Phillip Kreye³, Wolfram Rühaak³

¹Helmholtz-Zentrum für Umweltforschung GmbH UFZ, Germany; ²TU Bergakademie Freiberg; ³BGE Bundesgesellschaft für Endlagerung mbH; ⁴Dresden University of Technology

DEVELOPMENT AND USE OF THE THERMOCHIMIE DATABASE

Stéphane Brassinnes¹, Benoît Madé², Will Bower³

¹Belgian Agency for Radioactive Waste and Enriched Fissile Materials (ONDRAF/NIRAS); ²Agence nationale pour la gestion des déchets radioactifs (Andra); ³Nuclear Waste Services (NWS)

Investigating the Effects of Small Organic Molecules on the Adsorption of Uranyl on Clay Minerals with Molecular Dynamics

Jakub Ličko, Andrey G. Kalinichev

SUBATECH (UMR 6457 – IMT Atlantique, Nantes Université, CNRS-IN2P3), France

Numerical investigation of pore characteristics in spherical and platelet particle beds

Otono Miura¹, Ryunosuke Oishi¹, Tsubasa Yagi², Shusaku Harada¹

¹Hokkaido University, Japan; ²Radioactive Waste Management Funding and Research Center, Japan

Influence of salinity gradients on the diffusion of water and ionic species in dual porosity clay samples

Emmanuel Tertre¹, Thomas Dabat¹, Jingyi Wang², Sebastien Savoye², Fabien Hubert¹, Baptiste Dazas¹, Christophe Tournassat^3,4, Eric Ferrage¹

¹Université de Poitiers/CNRS, UMR 7285 IC2MP, Equipe HydrASA, 5 rue Albert Turpain, Bât. B8, TSA - 51106, 86073 Poitiers cedex 9, France; ²Université Paris-Saclay, CEA, Service d'Etude du Comportement des Radionucléides, 91191 Gif-sur Yvette, France; ³ISTO, UMR 7327, Univ. Orleans, CNRS, BRGM, OSUC, F-45071 Orléans, France; ⁴Earth and Environmental Sciences Area, Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, CA, USA

Diffusion experiment (36Cl, 3H) across concrete/claystone interface

Urs Mäder¹, Lukas Martin², Carmen Zwahlen³, Sandra Baur⁴, Christoph Vockenhuber⁵, Andreas Jenni³, Martin Heule⁴, Marcus Christl⁵, Mirjam Kiczka³, Josep Soler⁶

¹Rock-Water Consulting, Boll, Switzerland; ²Nagra, Wettingen, Switzerland; ³University of Bern, Switzerland; ⁴Paul Scherrer Institut, Switzerland; ⁵ETH Zuerich, Switzerland; ⁶CSIC Barcelona, Spain

Long Term Safety studies at EDF with code_saturne

Jérôme BONELLE, Marc KHAM, Raphael LAMOUROUX

EDF, France

Interaction of groundwater in crystalline rock and a compacted bentonite buffer

Michael Kröhn, Klaus-Peter Kröhn

GRS gGmbH, Germany

Migration of caesium decreases with increasing compaction of MX-80 bentonite

Theresa Hennig¹, Sina Grossmann², Jens Mibus³, Luc R. Van Loon⁴, Martin A. Glaus⁴, Vinzenz Brendler⁵

¹GFZ German Research Centre for Geosciences, Fluid Systems Modelling, Potsdam, Germany; ²VKTA Radiation Protection, Analytics and Disposal Rossendorf Inc., Environmental and Radionuclide Analyses, Dresden, Germany; ³Federal Office for the Safety of Nuclear Waste Management (BASE), Department A Supervision, Berlin, Germany; ⁴Paul Scherrer Institut, Laboratory for Waste Management, Villigen PSI, Switzerland; ⁵Helmholtz-Zentrum Dresden Rossendorf e.V., Institute of Resource Ecology, Dresden, Germany

Impact of temperature on the transfer of mobile tracers in the Toarcian clayrock at the Tournemire URL

Maïwenn Humbezi Desfeux¹, Jean-Michel Matray¹, Manuel Marcoux²

¹Institut de Radioprotection et de Sûreté Nucléaire (IRSN), PSE-ENV/SPDR/LETIS, Fontenay-aux-Roses, F-92260, France;; ²Institut de Mécanique des Fluides de Toulouse, UMR 5502 CNRS/INP/UPS 31400 Toulouse, France

Diffusion of Np through Illite du Puy

Claudia Joseph^1,2, Bianca Schacherl¹, Tonya Vitova¹, Polina Lavrova¹, Theresa Hennig³, Michael Kühn^3,4

¹Karlsruhe Institute of Technology (KIT), Institute for Nuclear Waste Disposal (INE), Germany; ²Bundesgesellschaft für Endlagerung, Germany; ³GFZ German Research Centre for Geosciences, Fluid Systems Modelling, Germany; ⁴University of Potsdam, Institute of Geosciences, Germany

Optimizing Wellbore Sealing with Japanese Na-Bentonite: In-sights from Two Vertical Wells at Grimsel Test Site, Switzerland

Takanori Kunimaru¹, Raphael Schneeberger², Armin Pechstein², Stratis Vomvoris²

¹NUMO, Japan; ²Nagra, Switzerland

Experimental and modelling study of the hydro-chemo-mechanical behaviour of sand bentonite mixtures in hyperalkaline conditions

Christophe IMBERT¹, Andrés IDIART², Sebastien SAVOYE¹, Wissem DRIDI¹, Marcelo LAVIÑA², Miquel DE LA IGLESIA², Nicolas MICHAU³, Benoit COCHEPIN³, Jean TALANDIER³

¹Paris-Saclay University, CEA, DRMP, 91191, Gif-sur-Yvette, France; ²Amphos 21 Consulting S.L., Barcelona, Spain; ³Andra, R&D Division, F-92298 Châtenay Malabry, France

Reactive Transport Modelling of Material Interface Evolution in the HLW Near-field

Georg Kosakowski¹, Lukas Martin²

¹Paul Scherrer Institut, Switzerland; ²Nagra, Switzerland

Understanding the Effect of Indigenous Microorganisms in Bentonite on the Biocorrosion of Metal Canisters, for the Final Disposal of Nuclear waste (Under Relevant DGR Conditions)

Adam David Mumford¹, Marcos Martinez-Moreno², Cristina Povedano-Priego², Mar Morales-Hidalgo², Miguel Ruiz-Fresneda², Yon Ju-Nam¹, Mohamed L. Merroun², Jesus J. Ojeda¹

¹Swansea University, Department of Chemical Engineering, United Kingdom; ²University of Granada, Department of Microbiology, Spain

Cation exchange parameters for Opalinus Clay and its confining units

Paul Wersin, Lukas Aschwanden, Mirjam Kiczka

University of Bern, Switzerland

Geochemical alteration in selected bentonites affected by thermal interaction with steel and saline solution hydration

Raúl Fernández, Carlos Mota-Heredia, Jaime Cuevas

Autonomous University of Madrid, Spain

Iron-bentonite interaction in a water-saturated low temperature environment: mineralogy and microstructure

María Jesús Turrero¹, Elena Torres¹, Pedro Luis Martín¹, Raúl Fernández², Ana Isabel Ruiz², Almudena Ortega², Antonio Garralón^1,2, Belén Notario³, Carlos Mota², Jaime Fernando Cuevas²

¹Ciemat, Madrid, Spain; ²UAM, Madrid, Spain; ³CENIEH, Burgos, Spain

Mineralogical evolution of COx claystone during in situ MCO experiment

Isabella Pignatelli¹, Nicolas Michau², Yannick Linard²

¹Université de Lorraine, Laboratoire CRPG, CNRS UMR 7358, 15 rue Notre-Dame des Pauvres, 54500, Vandœuvre-lès-Nancy, France; ²Andra, Scientific & Technical Division, Waste, Radionuclides, Chemicals & Geochemistry Department, 1/7 rue Jean Monnet, F-92298 Châtenay-Malabry CEDEX, France

Anoxic corrosion of carbon steel in different cementitious media and high temperature conditions: comparison between laboratory test and in situ experiment results

Charles Wittebroodt¹, Jules Goethals², Bojan Zajec³, Valery Detilleux⁴, Laurent De Windt⁵

¹IRSN, France; ²CEA, France; ³ZAG, Slovenia; ⁴Bel-V, Belgium; ⁵Mines Paris, France

Redox buffering by iron-bearing clay minerals in the ferrous iron/smectite system

Harry J. L. Brooksbank², Anke Neumann^1,2

¹PSI Paul Scherrer Institut, Switzerland; ²Newcastle University, UK

Modelling the reactive transport processes in unsaturated clay barriers – inclusion of capillary geochemistry

Shao-Jie Wu, Majid Sedighi, Andrey Jivkov

The University of Manchester, United Kingdom

Microbial ecology of engineered barrier components of a deep geological repository for used nuclear fuel

Rachel C. Beaver¹, Rhiannon Punch¹, Cailyn Perry¹, Claire S. Tully², Katja Engel¹, Melody A. Vachon¹, W. Jeffrey Binns³, Chang Seok Kim³, James J. Noël², Josh D. Neufeld¹

¹University of Waterloo, Waterloo, Canada; ²Western University, London, Canada; ³Nuclear Waste Management Organization, Toronto, Canada

Steel corrosion and reactive transport model in bentonite for predicting spent fuel disposal package lifetime

Milan Hokr¹, Lucie Baborová², Jan Šembera¹, Vratislav Žabka¹, Jan Stoulil³, Dušan Vopálka², Eva Bedrníková⁴, Petr Večerník⁴, David Dobrev⁴

¹Technical University of Liberec, Czech Republic; ²Czech Technical University in Prague, Faculty of Nuclear Sciences and Physical Engineering, Czechia; ³University of Chemistry and Technology Prague, Czechia; ⁴ÚJV Řež, a.s., Czechia

Experimental study of swelling and permeability of a Bavarian bentonite, Friedland clay, and Opalinus clay at 35–150 °C

Artur Meleshyn, Matthias Hinze, Marvin Middelhoff

GRS gGmbH, Germany

A new experimental system for studying gas formation and release during laboratory rock core heating experiments

Christian Ostertag-Henning, Oliver Helten

Federal Institute for Geosciences and Natural Resources (BGR), Germany

Temperature Influence on Swelling Pressure of Ca-Bentonite up to 150 °C

Deuk-Hwan Lee, Gi-Jun Lee, Seeun Chang, Minhyeong Lee, Seok Yoon, Chnagsoo Lee, Dong-Keun Cho

Korea Advanced Energy Research Institute, Korea, Republic of (South Korea)

The CHENILLE experiment: Coupled beHaviour undErstaNdIng of fauLts: from the Laboratory to the fiEld

Rüdiger Giese¹, Audrey Bonnelye², Pierre Dick³, Carolin Böse¹, Stefan Lueth¹, Ben Norden¹, Katrin Plenkers⁴, Roman Esefelder⁵, Christian Cunow¹, Sven Fuchs¹

¹German Research Centre for Geosciences GFZ, Germany; ²Université de Lorraine, Georessources, Ecole des Mines de Nancy, France; ³Institut de Radioprotection et de Sûreté Nucléaire (IRSN), PSE-ENV/SPDR/LETIS, Fontenay-aux-Roses, F-92260, France; ⁴4 Gesellschaft für Material­prüfung und Geophysik (GmuG), Bad Nauheim, Germany; ⁵Friedrich-Schiller-Universität, Institut für Geowissenschaften, Jena, Germany

COCONS: A numerical tool for Thermo-Hydro-Mecanical dimensioning of a deep geological repository High Level Waste area

Florian Escoffier, Sylvie Granet, Geoffroy Mélot, Isabelle Rupp

EDF R&D, France

HotBENT at the Grimsel Test Site - Early THMC evolution of a buffer at up to 200°C

Florian Kober¹, Raphael Schneeberger¹, Stefan Finsterle², Stratis Vomvoris¹, Bill Lanyon³

¹Nagra, Switzerland; ²Finsterle GeoConsulting, LLC, Kensington, CA, United States; ³Fracture Systems Ltd., St. Ives, Great Britain

Thermo-hydraulic characterization of bentonite in partially saturated conditions at two temperature levels

Eleonora Crisci¹, Raphael Schneeberger², Alexandros Papafotiou², Florian Kober²

¹Nesol Numerical Engineering Solutions, Lausanne, Switzerland; ²Nagra, National Cooperative for the Disposal of Radioactive Waste, Wettingen, Switzerland

Identification of key parameters in coupled thermal-hydraulic analysis model for unsaturated Kunigel V1 bentonite

Yusaku Takubo¹, Yusuke Takayama², Keisuke Ishida¹

¹Nuclear Waste Management Organization of Japan (NUMO), Japan; ²Japan Atomic Energy Agency (JAEA), Japan

Thermally Aged (165oC-200oC) Bentonite Performance

Sirpa Kumpulainen¹, Jari Martikainen¹, Teemu Laurila¹, Olivier Leupin², Florian Kober²

¹MITTA, Finland; ²Nagra, Switzerland

Swelling, outflow, and permeability characteristics of bentonite in NaCl solutions of various concentrations

Masanori Kohno, Shun Kohdo, Tsuyoshi Nishimura

Tottori University, Japan

Modelling air convection in a segmented buffer

Peter Eriksson

SKB, Sweden

Mineralogical and geotechnical characterization of two German bentonites from Westerwald and Bavaria

Ali Asaad¹, Antonia Nitsch², Wiebke Baille², Katja Emmerich¹

¹Institute of Concrete Structures and Building Materials (IMB, MPA, CMM), Karlsruhe Institute of Tech-nology (KIT), Karlsruhe, Germany; ²Chair of Soil Mechanics, Foundation Engineering and Environmental Geotechnics, Department of Civil and Environmental Engineering, Ruhr-University Bochum, Bochum, Germany

Implications of groundwater composition on the performance of ben-tonite components in nuclear waste disposal facilities

Han Ming Lai¹, Lidija Zdravkovic¹, David M. Potts¹, Matthew Kirby²

¹Imperial College London, United Kingdom; ²Nuclear Waste Services, UK

The alteration of bentonite in contact with carbon steel

Šárka Šachlová¹, Petr Bezdička², Michaela Matulová³, Vlastislav Kašpar¹, Karol Kočan¹, Zbyněk Veselka⁴, Petr Večerník¹

¹ÚIJV Řež, a.s., Radioactive waste and decommissioning; ²Institute of Inorganic Chemistry of the Czech Academy of Sciences; ³Radioactive Waste Repository Authority; ⁴ÚJV Řež, a. s., Integrity and Technical Engineering,

Numerical analysis of the re-saturation of bentonites under isothermal and non-isothermal conditions using a double-porosity model

Ramon Vasconcelos¹, Antonio Gens¹, Carlos Eduardo Rodríguez¹, Jean Vaunat¹, María Victoria Villar²

¹Universitat Politècnica de Catalunya (UPC) - CIMNE, Barcelona, Spain; ²Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas (CIEMAT), Madrid, Spain

Numerical Modelling of Volume Change Behaviour in Bentonite Buffer Exposed to Thermo-Hydraulic Gradients

Pavan Kumar Bhukya¹, Nandini Adla¹, Wang Xuerui², Dali Naidu Arnepalli¹

¹Department of Civil Engineering, Indian Institute of Technology Madras, Chennai, Tamil Nadu, India; ²Gesellschaft für Anlagen- und Reaktorsicherheit (GRS) gGmbH, Braunschweig, Germany

Shear resistance of bentonite with non-uniformity distribution in suction

Tomoyoshi Nishimura¹, Takayuki Motoshima², Sachie Iso²

¹Department of Civil Engineering, Ashikaga University, Tochigi, Japan; ²Nuclear Facilities Division, Taisei Corporation, Tokyo, Japan

Verification of Von Mises and modified Cam clay models’ imple-mentation using analytical solutions. Triaxial tests simulation.

Jordi Alcoverro¹, Xavier Pintado², Juha Kuutti³, Ville Heino⁴

¹Technical University of Catalonia, Spain; ²Mitta Engineering Oy, Finland; ³VTT, Finland; ⁴Posiva Oy, Finland

Reactive transport models of the interactions of corrosion products and unsaturated FEBEX bentonite in laboratory and in situ tests

Javier Samper, Alba Mon, Luis Montenegro

Universidad de A Coruña, Spain

The impact of NaNO3 on the diffusion of dissolved gases in clay

Elke Jacops¹, Chloé Roonacker², Hannes Claes³, Lander Frederickx¹, Anneleen Vanleeuw¹, Phung Quoc Tri¹, Jerry Peprah Owusu^4,6, Jon Harrington⁵, Andy Wiseall^5,7, Christophe Bruggeman¹

¹SCK CEN, Belgium; ²ULg, Belgium; ³KU Leuven, Belgium; ⁴PSI, Switzerland; ⁵BGS, United Kingdom; ⁶University of Bern, Switzerland; ⁷NWS, United Kingdom

Modelling of mock-up tests for bentonite seals

Sonja Kaiser¹, Aqeel Afzal Chaudhry¹, Martin Hofmann¹, Thomas Nagel^1,2

¹TU Bergakademie Freiberg, Freiberg, Germany; ²Freiberg Center for Water Research - ZeWaF, Freiberg, Germany

Gas transport along granite/bentonite interfaces

Vanesa Gutiérrez Rodrigo, Pedro Luis Martín Martín, María Victoria Villar Galicia

CIEMAT, Spain

A study on buffer-material erosion under constant water head condition

Kenji Ishii¹, Akihiro Matsumoto¹, Ichizo Kobayashi¹, Hirohito Kikuchi², Daisuke Hayashi²

¹Kajima Corporation, Tokyo, Japan; ²Radioactive Waste Management Funding and Research Center, Tokyo, Japan

Filling efficiency of mono-sized pellets for sealing boreholes for a wide range of borehole-to-pellet diameter ratios

Ayaka Sakaki¹, Toshihiro Sakaki²

¹International Christian University, Japan; ²ESE Consulting LLC, Japan

Gas in radwaste deep geological repositories: example from Bure URL in clay rich formation

Rémi DE LA VAISSIERE, Jean TALANDIER, Christophe DE LESQUEN, Gilles ARMAND

ANDRA, France

Particle size evolution of granular bentonite on wetting and loading

Hao Zeng¹, Laura Gonzalez-Blanco^2,1, Enrique Romero^1,2

¹Universitat Politècnica de Catalunya (UPC), Barcelona, Spain; ²International Centre for Numerical Methods in Engineering (CIMNE), Barcelona, Spain

Gas Transport in the Barrier – Lessons learnt from BenVaSim-II, EURAD-GAS and DECOVALEX2023

Michael Pitz^1,2, Gesa Ziefle¹, Jobst Maßmann¹, Eike Radeisen^1,4, Norbert Grunwald^3,2, Olaf Kolditz^3,4, Thomas Nagel^2,3

¹Federal Institute for Geosciences and Natural Resources; ²Technische Universität Bergakademie Freiberg; ³Helmholtz Center for Environmental Research; ⁴Technical University Dresden

Role of poromechanical couplings in gas fracturing around an excavation

Mohammad-Youssef FALLAH-SOLTANABAD¹, Amade POUYA¹, Laurent BROCHARD¹, Minh-ngoc VU², Christophe DE LESQUEN²

¹Navier Laboratory, Ecole des Ponts ParisTech, Gustave Eiffel University, CNRS, 77455 Marne la Vallée, France; ²Andra R&D, 92290 Châtenay-Malabry, France

Impact of Heterogeneity in 3D THM-G Modelling of Laboratory to Field-Scale Tests in the Context of Nuclear Waste Repository Design

Erdem Toprak, Sebastia Olivella

CIMNE, Spain

Assessment of the effect of heterogeneities on the hydromechanically coupled behavior of two German bentonites

Wiebke Baille¹, Antonia Nitsch¹, Torsten Wichtmann¹, Ali Asaad², Katja Emmerich²

¹Ruhr-Universität Bochum, Germany; ²Karlsruhe Institute of Technology (KIT), Germany