Time: Wednesday, 27/Nov/2024: 1:30pm - 2:30pm |
Location: Eilenriedehalle A |
What limits the temperature at canister surface in clay-based HLRW concepts? – Discussion in an international context
State Authority for Mining, Energy and Geology (LBEG), Hannover, Germany
The role of bentonite in the high-level radioactive waste repository design
Federal Company for Radioactive Waste Disposal (BGE), Germany
Preliminary design of a disposal facility for high-level radioactive waste in claystone
1Bundesgesellschaft für Endlagerung mbH, Germany; 2BGE Technology GmbH, Germany
Characterization of the Lower Cambrian and the Lower Triassic clayey formations in terms of the potential for the sitting of Deep Geological Repository of radioactive waste in Lithuania
1Vilnius University, Lithuania; 2Lithuanian Geological Survey under Ministry of Environment
Geological variability of the Opalinuston-Formation in Southern Germany: new insights from the research project SEPIA
1Federal Institute for Geosciences and Natural Resources (BGR), Hannover, Germany; 2Department of Geosciences, University of Fribourg, 1700 Fribourg, Switzerland; 3State Authority for Mining, Energy and Geology (LBEG), Hannover, Germany
OVERVIEW OF GEODYNAMIC EVOLUTION EFFECT ON HYDROGEOLOGICAL PERFORMANCE OF DEEP GEOLOGICAL REPOSITORY SITE FOR RAWASTE. FEED BACK AND LESSONS LEARNED FROM TWO DECADES OF STUDIES
GeoRem Oy, Finland
Kiirunavaara Ca-smectite, northern Sweden: a natural analogue of long-term clay stability
1Nagra, Switzerland; 2LKAB, Sweden; 3Technische Universität München, Germany; 4University of Oregon, USA; 5BGR, Germany; 6Mitta, Finland; 7Georgia State University, USA; 8Columbine Corporation, USA; 9University of Bern, Switzerland and University of Milan Bicocca, Italy; 10Faculty of Engineering, Hokkaido University, Japan; 11Graduate School of Engineering, Hokkaido University, Japan (currently: Civil Engineering Department, Nuclear Facilities Division, Taisei Corporation, Japan); 12NUMO, Japan; 13EPFL, Switzerland.; 14Bedrock Geosciences, Switzerland; 15Andra, France; 16NWMO, Canada; 17NWS, UK; 18Posiva, Finland; 19SKB, Sweden
Unveiling early diagenetic carbonate precipitation: Sequential C-isotope analysis of calcite and siderite in Opalinus Clay
1Institute of Geological Sciences, University of Bern, 3012 Bern, Switzerland; 2Nagra, 5430 Wettingen, Switzerland
Geochemistry of pore waters in Opalinus Clay at the Mont Terri Rock Laboratory within the Bitumen-Nitrate-Clay interaction experiment
1Bundesamt für die Sicherheit der nuklearen Entsorgung (BASE), Germany; 2Belgian Nuclear Research Centre (SCK CEN), Belgium
39Ar and 37Ar in deep groundwater: Evaluation regarding young components, cross-formation flow and in-situ production
1Institute of Geological Sciences, University of Bern, Bern, Switzerland; 2Climate & Environmental Physics, Physics Institute, University of Bern, Bern, Switzerland; 3WaterGeoChem Consulting, Bern, Switzerland; 4Hydroisotop GmbH, Schweitenkirchen, Germany; 5Nagra, Wettingen, Switzerland
Geochemical profiles in the hydrogeological system of the Opalinus Clay at Mont Terri, Switzerland
1GFZ German Research Centre for Geosciences, Fluid Systems Modelling, Potsdam, Germany; 2GFZ German Research Centre for Geosciences, Inorganic and Isotope Geochemistry, Potsdam, Germany; 3University of Potsdam, Institute of Geosciences, Potsdam, Germany; 4Federal Office of Topography Swisstopo, Wabern, Switzerland
ID: 177
Crushed claystone used as material for the construction of EBS-components in repositories for nuclear waste – A generic methodology for material selection
Gesellschaft für Anlagen- und Reaktorsicherheit (GRS) gGmbH, Germany
Rock mass response to processes in a Sandwich shaft sealing system
1Federal Institute for Geosciences and Natural Resources (BGR), Germany; 2Gesellschaft für Anlagen- und Reaktorsicherheit (GRS) gGmbH, Germany; 3Bundesamt für Landestopografie (swisstopo), Switzerland
ID: 235
Modelling sulfide corrosion in the Swiss HLW repository under various repository settings
1University of Bern, Switzerland; 2Nagra, Switzerland
As-Placed Dry Density of Gap Fill Material in Overbreak Zones within the Placement Room
Nuclear Waste Management Organization, Canada
Excavation of the Konrad 2 shaft landing station in a clay and marl claystone: geotechnical challenges and support solutions
1Bundesgesellschaft für Endlagerung mbH, Germany; 2BGE TECHNOLOGY GmbH, Germany
Feedback on the multi-scale mechanical and technical demonstration of drift construction at the French URL
Andra, France
A wireless data transmission system for the future deep geological repository
1Amphos 21 Consulting S.L., Spain; 2Empresa nacional de residuos radiactivos (Enresa), Spain; 3Karlsruhe Institute of Technology (KIT), IMB/MPA/CMM, Karlsruhe, Germany; 4Gesellschaft für Anlagen- und Reaktorsicherheit (GRS) gGmbH, Braunschweig, Germany; 5Bundesamt für Landestopografie (swisstopo), St-Ursanne, Switzerland
Observation of saturation processes in the Sandwich experiment with ERT (URL Mont Terri)
Bundesanstalt für Geowissenschaften und Rohstoffe, Germany
ID: 442
Influence of polysulfide radicals in measuring corrosion rates of a carbon steel API 5L X65 in contact with cement grout in future nucle-ar waste disposal program
1BRGM, Orléans, France; 2ANDRA, Châtelet-Malabry, France; 3LGC, Toulouse, France
ID: 290
Estimating Water Retention of Compacted Bentonite with Cat-Boost: Integrating Physical Model Residuals and Penalized Learning
Institute of Geotechnics, TU Bergakademie Freiberg, Gustav-Zeuner-Str. 1,Freiberg, 09599, Germany
Full-Scale In-Situ System Test (FISST) at the Finnish spent nuclear fuel disposal facility. Analysis and simulation.
1Mitta Engineering Oy, Finland; 2Posiva Oy, Finland
MANAGEMENT OF SORPTION DATA IN SUPPORT TO RADIOACTIVE WASTE MANAGEMENT
1Belgian Agency for Radioactive Waste and Enriched Fissile Materials (ONDRAF/NIRAS); 2Amphos21
Numerical analysis of permeability in sphere-platelet mixtures
1Hokkaido University, Japan; 2Radioactive Waste Management Funding and Research Center, Japan
Trace elements in Dutch Paleogene clays
1COVRA, Netherlands, The; 2Utrecht University; 3TNO; 4Delft University of Technology
Effect of environmental conditions on the sorption of 241Am(III) on natural clayrocks and their main constituents
1SCK CEN, Belgium; 2NIRAS/ONDRAF, Belgium
ID: 307
Radionuclide transport in variably water-saturated compacted clays: a pore-scale view
1Forschungszentrum Jülich, Germany; 2Karlsruhe Institute of Technology (KIT), Germany; 3Queen’s University, Canada; 4Paul Scherrer Institut, Switzerland; 5University of Bern, Switzerland
ID: 319
Insights into the Interactions of Clay Minerals and Humic Acids: A Molecular Dynamics Study
1Graduate School of Engineering, Chiba University, Japan; 2Nuclear Fuel Cycle Engineering Laboratories, Japan Atomic Energy Agency, Japan; 3Horonobe Underground Research Center, Japan Atomic Energy Agency, Japan
ID: 346
Transport Properties of Water in a Polydisperse Coarse-Grained Model of Sodium Montmorillonite
1Department of Mechanical and Materials Engineering, Queen’s University, Kingston, Canada.; 2Department of Materials Science and Engineering, University of Toronto, Toronto, Canada; 3Nuclear Waste Management Organization, Toronto, Canada; 4Ionworks Technologies Inc, Pittsburgh, United States of America; 5Commonwealth Scientific and Industrial Research Organization, Data61, Melbourne, Australia; 6Institute of Energy and Climate Research – Nuclear Waste Management (IEK-6) and JARA-CSD, Forschungszentrum Jülich GmbH, Jülich, Germany
Comparison of experimental diffusion data of various cationic elements in rock samples from the deep-hole drilling campaign in northern Switzerland with model predictions by the ClaySorDif model
1Paul Scherrer Institut, Switzerland; 2Nagra, Switzerland
Iron(II)-montmorillonite interaction: experimental results and model-ling for dispersed and compacted systems
1Institute of Geological Sciences, University of Bern, Bern, Switzerland; 2Laboratoire Subatech, Nantes, France; 3Le Mans Université, Le Mans, France; 4Nagra, Wettingen, Switzerland
Electrostatic interactions at clay mineral surfaces: linking geochem-istry with geomechanical properties
1Institut des Sciences de la Terre d’Orléans, Université d’Orléans, CNRS, BRGM, OSUC, Orléans 45071, France; 2Earth and Environmental Sciences Area, Lawrence Berkeley National Laboratory, Berkeley, CA, USA; 3BRGM, Orléans, France
Transport experiments in claystone: electrostatic effects and preferential pathways
1University of Bern, Bern, Switzerland; 2Rock-Water Consulting, Boll, Switzerland; 3NRG, Petten, the Netherlands; 4Laboratory for Waste Management, Paul Scherrer Institut, Villigen, Switzerland
Experimental investigation of the changes in transport properties of Opalinus claystone/concrete interface samples from the Mont Terri CI experiment
1SCK CEN, Belgium; 2KULeuven, Belgium
Cement-Bentonite Interaction with Different Cement Materials at Elevated Temperatures 1: Experiments
1Japan Atomic Energy Agency, Japan; 2QJ Science Ltd., Japan
Gains and losses of exchangeable cations in ‘alternative bentonite buffer material in-situ tests’ (ABM-1, -2 and -5) after heating from 140 °C to 250 °C - what has caused observed differences?
1LBEG, Germany; 2BGR, Germany
Evolution of microbial populations under the influence of increasing temperature in the Callovian-Oxfordian clay-rich rock
1Andra, France; 2Aix-Marseille Université, France; 3CFG, France; 4Hydroisotop GmbH, Germany
Differences between the basal spacings of random powder patterns and air-dried oriented aggregates of bentonite samples
1CIEMAT, Spain; 2UAM, Spain
ID: 246
Hydrogeochemical processes occurring in excavated argillaceous rocks stored at the surface as heaps and consequences on water chemistry
1Andra, Centre de Meuse/Haute-Marne, 55290 Bure, France; 2BRGM, French Geological Survey, 3 av. Claude-Guillemin, 45060 Orléans, France; 3Geostock, 92500 Rueil-Malmaison, France
A mechanistic understanding of bentonite alteration at corroding iron interfaces
1Jacobs Clean Energy, Didcot, United Kingdom; 2British Geological Survey, Keyworth, United Kingdom; 3Nagra, Wettingen, Switzerland
Mutual effects of pH, matrix elements and organic ligands on the mobility of U(VI) in bentonite systems
1Helmholtz-Zentrum Dresden - Rossendorf, Institute of Resource Ecology, Germany; 2Present address: Federal Office for the Safety of Nuclear Waste Management (BASE), Germany
Quantitative analysis of the mineralogical composition of bentonites by full pattern fitting using the powdR package
1James Hutton Institute, United Kingdom; 2Department of Soil and Environment, SLU, Uppsala, Sweden; 3BGR, Hannover, Germany; 4Landeslabor Berlin-Brandenburg, Berlin, Germany; 5Universidad de Salamanca, Salamanca, Spain
Acidification and CO2-degassing in bentonites triggered by oxida-tion of Fe(II)–containing minerals
Leibniz Universität Hannover, Germany
Dynamic and static experiments for the identification of the effect of transient processes on corrosion
CIEMAT, Spain
Effect of organic molecules on radionuclide retention in COx clay rock: the case of Ni-TBP/EDTA mixtures
1Université Paris-Saclay, CEA, Service de Physico-Chimie, 91191, Gif-sur-Yvette; 2Andra, R&D Division, parc de la Croix Blanche, 92298, Châtenay-Malabry
Distorting mirrors – new perspectives on the layer charge reduction phenomena in heat-treated smectites: implications for CEC measurements in bentonites
Institute of Geological Sciences, Polish Academy of Sciences, Poland
Self-sealing potential of fractures as a result of hydration, shear, and temperature
1British Geological Survey, United Kingdom; 2now at Nuclear Waste Services, United Kingdom
ID: 192
Effect of Sodium Occupancy and Solute Concentration on the Swelling Behaviour of Poorly Indurated Boom Clay
1Université de Liège, Belgium; 2Ecole des Ponts et Chaussées, Champs-sur-Marne, France; 3SCK-CEN, Mol, Belgium
ID: 286
The anisotropic creep behaviour and the long-term strength of Opalinus Clay
1Department of Engineering Geology and Hydrogeology, RWTH Aachen, Germany; 2Fraunhofer Research Institution for Energy Infrastructures and Geothermal Systems IEG, Germany
Numerical analyses of geological barrier integrity under parameter uncertainty
Bundesanstalt für Geowissenschaften und Rohstoffe, Germany
Assessment of in-situ heater experiments conducted in the Callo-vo-Oxfordian claystone based on the French high-level radioactive waste disposal concept
1Andra, Meuse/Haute-Marne Underground Research Laboratory, Bure, France; 2Andra, Châtenay-Malabry, France
HE-E heating experiment in the Mont Terri rock laboratory - sampling of a hot, unconsolidated granular bentonite buffer after 12 years of heating during continued operation
1Nagra, Switzerland; 2Rock Water Consulting, Boll, Switzerland; 3CIEMAT, Madrid, Spain; 4Fracture Systems Ltd., St. Ives, Great Britain
A standard thermodynamic-based extension of the Modified Cam-Clay model for plastic-viscoplastic geomaterials
EDF, France
Enhancements to a Hydromechanical Material Model for Compacted Bentonite
1Clay Technology, Lund, Sweden; 2Swedish Nuclear Fuel and Waste Management Co, Solna, Sweden
Numerical analysis of the re-saturation of bentonites under isothermal and non-isothermal conditions using a double-porosity model
1Universitat Politècnica de Catalunya (UPC) - CIMNE, Barcelona, Spain; 2Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas (CIEMAT), Madrid, Spain
ID: 203
HYDRO-MECHANICAL BEHAVIOUR OF BENTONITE AT HIGH TEMPERATURE
CIEMAT, Spain
Geochemical modelling of mineral-water reaction between Bavarian bentonite B25 and Opalinus clay pore solution
GRS gGmbH, Germany
Thermochemical alterations in montmorillonite: Experiment constraints in the presence of organic anion ligands
University of Greifswald, Institute for Geography and Geology, Department of Economic Geology and Mineralogy, Greifswald, Germany
ID: 221
Tracking bentonite-water interactions by stable-H- and O-isotope exchange over a thermal gradient: First isotopic results from the Alternative Buffer Materials 2 and 5 bentonites
1Institute of Geological Sciences, PAS, Poland; 2The University of Western Ontario; 3Technical University of Munich
Engineered Barrier 200C – High temperature in-situ experiment
Czech Technical University, Czech Republic
Modeling of the HotBENT test using COMSOL Multiphysics
1Clay Technology Lund AB, Sweden; 2Nuclear Waste Management Organisation, Canada
ID: 456
Modelling the Disturbed Rock Zone behaviour in a Deep Geological Repository
Deaprtment of Civil Engineering, Indian Institute of Technology, Madras, India
Elastic-plastic components in void ratio with suction
1Ashikaga University, Japan; 2Polytech'Lille, Université de Lille, France; 3Polytech'Lille, Université de Lille, France
Benchmark case for non-isothermal multiphase flow and reactive transport for radioactive waste disposal
1Universidad de A Coruña, Spain; 2E2S UPPA, CNRS, LMAP, Universite de Pau et des Pays de l’Adour, Pau, France; 3College of New Energy and Environment, Jilin University, Changchun 130021, P. R. China; 4Technical University of Liberec (TUL) Czech Republic; 5Lithuanian Energy Institute, Nuclear Engineering Laboratory, Kaunas, Lithuania
ID: 410
Experimental and numerical modelling of binary bentonite-based mixture compressibility
1International Centre for Numerical Methods in Engineering (CIMNE), Barcelona, Spain; 2Universitat Politècnica de Catalunya, Barcelona, Spain; 3Institut de Radioprotection et de Sûreté Nucléaire (IRSN), Fontenay-aux-Roses, France
ID: 421
The influence of faults on the geomechanical properties of Opal-inus Clay – First results from the PF-A experiment
1Department of Engineering Geology, RWTH Aachen, Germany; 2Fraunhofer Research Institution for Energy Infrastructures and Geothermal Systems IEG, Aachen, Germany; 3Swiss Federal Office of Topography (swisstopo), Mont Terri URL, St-Ursanne, Switzerland; 4Dipartimento di Scienze della Terra La Sapienza Università di Roma, Italy; 5Department of Geosciences, Pennsylvania State University, Pennsylvania, USA
Diffusion of dissolved gases in clay: a collaborative modelling exercise of EURAD GAS
1SCK CEN, Belgium; 2Aalto University, Finland; 3BGR, Germany; 4ONDRAF/NIRAS, Belgium; 5TU Delft, The Netherlands; 6Lei, Lithuania; 7ULiège, Belgium; 8TU Bergakademie Freiberg, Germany
ID: 139
Experimental Study on Evaluation Method of Apparent Erosion Rate Constant of Bentonite using X-ray CT Images
1Taiheiyo Consultant Co., Ltd., Japan; 2Tohoku University, Japan; 3Kajima Corporation, Japan
Modeling of gas propagation along a micro-tunnel in the Meuse / Haute-Marne Underground Research Laboratory
1INTERA Incorporated, France/Switzerland/United States; 2ANDRA, Bure, France
The effect of an alkaline plume on the self-sealing capacity of Boom Clay evidenced by high resolution computed tomography and hy-draulic conductivity measurements
1SCK-CEN, Belgian Nuclear Research Center, Mol, Belgium; 2UGent, Department of Physics and Astronomy, Gent University, Belgium; 3ONDRAF/NIRAS, Belgian National Agency for Radioactive Waste and Enriched Fissile Materials, Brussels, Belgium
ID: 350
Modelling gas drainage in argillite pores with SPH method
1Institut de Radioprotection et de Sûreté Nucléaire(IRSN), PSE-ENV/SPDR/LETIS, France; 2Institut Jean le Rond d'Alembert, France
ID: 373
The Hydro-mechanical Interaction between Different Tunnel Support Strategies and the Excavation Damaged Zone (EDZ)
1Chair of Soil Mechanics, Foundation Engineering and Environmental Geotechnics, Ruhr University Bochum, Bochum, Germany; 2Department of Civil Engineering, Luxembourg University, Luxembourg, Luxembourg
ID: 151
Gas transport along granite/bentonite interfaces
CIEMAT, Spain
ID: 306
Interactions at the interface between EBS-components of a repository for nuclear waste in claystone formations
1Gesellschaft für Anlagen- und Reaktorsicherheit (GRS) gGmbH, Germany; 2Agence pour la gestion des déchets radioactifs (Andra), France
Mini GAST: Experimental Upscaling of an Engineered Gas Permeable Seal
1Universitat Politècnica de Catalunya (UPC), Barcelona, Spain; 2International Centre for Numerical Methods in Engineering (CIMNE), Barcelona, Spain; 3National Cooperative for the Disposal of Radioactive Waste (Nagra), Wettingen, Switzerland
Laboratory scale experimental assessment of bentonite-sand mixtures
1British Geological Survey (BGS), United Kingdom; 2Agence nationale pour la gestion des déchets radioactifs (ANDRA), France
Experimental study and numerical modeling of poromechanical be-haviour of Callovo-Oxfordian claystone under drained and undrained conditions
1University of Lille, France; 2Andra, France
ID: 339
Hydro-mechanical Properties of Rock and Bentonite Mixtures for Gas Management within Geological Disposal Facilities
1The University of Edinburgh, United Kingdom; 2Stirling University; 3Quintessa ltd