Conference Agenda
Overview and details of the sessions of this conference. Please select a date or location to show only sessions at that day or location. Please select a single session for detailed view (with abstracts and downloads if available).
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Session Overview |
| Date: Wednesday, 27/Nov/2024 | |||
| 8:00am - 8:30am |
Registration |
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| 8:30am - 10:00am |
Plenary #4: Gas Location: Eilenriedehalle B Chair: Maarten Van Geet, ONDRAF/NIRAS, Belgium Chair: Simon Norris, Nuclear Waste Services, United Kingdom EURAD-GAS, a step forward in understanding gas transport in clay-ey materials 9:00am - 9:20am Ten years of laboratory gas testing in Boom Clay at the UPC/CIMNE Geotechnical Laboratory 9:20am - 9:40am Advective gas migration in Opalinus Clay at the Mont Terri URL 9:40am - 10:00am Molecular scale understanding of gas transport in clays |
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| 10:00am - 10:30am |
Coffee Break Location: Eilenriedehalle A |
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| 10:30am - 12:00pm |
Plenary #5: Competence building and transfer Location: Eilenriedehalle B Chair: Juan Carlos Mayor, Enresa, Spain Chair: Astrid Göbel, BGE, Germany Invited Keynote: Christophe Bruggeman (Belgian Nuclear Research Center) "Competence building in the frame of radioactive waste management: challenges and expectations"
Invited Keynote Competence building in the frame of radioactive waste management: challenges and expectations 11:00am - 11:20am High performance reactive transport model for cement-claystone interface simulations 11:20am - 11:40am Hydro-chemo-mechanical and transport coupled phenomenon to explain overpressure in Callovo-Oxfordien clay formation 11:40am - 12:00pm Towards site specific R&D to underpin the management of gas generation in a UK Geological Disposal Facility (GDF) |
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| 12:00pm - 12:30pm |
2 min poster presentation #3 Location: Eilenriedehalle B |
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| 12:30pm - 1:30pm |
Lunch Break Location: Eilenriedehalle A |
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| 1:30pm - 2:30pm |
Poster exhibition #3 Location: Eilenriedehalle A The role of bentonite in the high-level radioactive waste repository design Preliminary design of a disposal facility for high-level radioactive waste in claystone 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 Geological variability of the Opalinuston-Formation in Southern Germany: new insights from the research project SEPIA 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 Kiirunavaara Ca-smectite, northern Sweden: a natural analogue of long-term clay stability Unveiling early diagenetic carbonate precipitation: Sequential C-isotope analysis of calcite and siderite in Opalinus Clay Geochemistry of pore waters in Opalinus Clay at the Mont Terri Rock Laboratory within the Bitumen-Nitrate-Clay interaction experiment 39Ar and 37Ar in deep groundwater: Evaluation regarding young components, cross-formation flow and in-situ production Geochemical profiles in the hydrogeological system of the Opalinus Clay at Mont Terri, Switzerland Crushed claystone used as material for the construction of EBS-components in repositories for nuclear waste – A generic methodology for material selection Rock mass response to processes in a Sandwich shaft sealing system Modelling sulfide corrosion in the Swiss HLW repository under various repository settings As-Placed Dry Density of Gap Fill Material in Overbreak Zones within the Placement Room Feedback on the multi-scale mechanical and technical demonstration of drift construction at the French URL A wireless data transmission system for the future deep geological repository Observation of saturation processes in the Sandwich experiment with ERT (URL Mont Terri) 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 Estimating Water Retention of Compacted Bentonite with Cat-Boost: Integrating Physical Model Residuals and Penalized Learning Full-Scale In-Situ System Test (FISST) at the Finnish spent nuclear fuel disposal facility. Analysis and simulation. MANAGEMENT OF SORPTION DATA IN SUPPORT TO RADIOACTIVE WASTE MANAGEMENT Numerical analysis of permeability in sphere-platelet mixtures Trace elements in Dutch Paleogene clays Effect of environmental conditions on the sorption of 241Am(III) on natural clayrocks and their main constituents Radionuclide transport in variably water-saturated compacted clays: a pore-scale view Insights into the Interactions of Clay Minerals and Humic Acids: A Molecular Dynamics Study Transport Properties of Water in a Polydisperse Coarse-Grained Model of Sodium Montmorillonite 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 Iron(II)-montmorillonite interaction: experimental results and model-ling for dispersed and compacted systems Electrostatic interactions at clay mineral surfaces: linking geochem-istry with geomechanical properties Transport experiments in claystone: electrostatic effects and preferential pathways Experimental investigation of the changes in transport properties of Opalinus claystone/concrete interface samples from the Mont Terri CI experiment Successful gas tests at the GAs permeable Seal Test (GAST) - Highlights and lessons learned (Grimsel Test Site, CH) Cement-Bentonite Interaction with Different Cement Materials at Elevated Temperatures 1: Experiments 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? Evolution of microbial populations under the influence of increasing temperature in the Callovian-Oxfordian clay-rich rock Differences between the basal spacings of random powder patterns and air-dried oriented aggregates of bentonite samples Hydrogeochemical processes occurring in excavated argillaceous rocks stored at the surface as heaps and consequences on water chemistry A mechanistic understanding of bentonite alteration at corroding iron interfaces Mutual effects of pH, matrix elements and organic ligands on the mobility of U(VI) in bentonite systems Quantitative analysis of the mineralogical composition of bentonites by full pattern fitting using the powdR package Acidification and CO2-degassing in bentonites triggered by oxida-tion of Fe(II)–containing minerals Dynamic and static experiments for the identification of the effect of transient processes on corrosion Effect of organic molecules on radionuclide retention in COx clay rock: the case of Ni-TBP/EDTA mixtures Distorting mirrors – new perspectives on the layer charge reduction phenomena in heat-treated smectites: implications for CEC measurements in bentonites Self-sealing potential of fractures as a result of hydration, shear, and temperature Effect of Sodium Occupancy and Solute Concentration on the Swelling Behaviour of Poorly Indurated Boom Clay The anisotropic creep behaviour and the long-term strength of Opalinus Clay Numerical analyses of geological barrier integrity under parameter uncertainty Assessment of in-situ heater experiments conducted in the Callo-vo-Oxfordian claystone based on the French high-level radioactive waste disposal concept 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 A standard thermodynamic-based extension of the Modified Cam-Clay model for plastic-viscoplastic geomaterials Enhancements to a Hydromechanical Material Model for Compacted Bentonite HYDRO-MECHANICAL BEHAVIOUR OF BENTONITE AT HIGH TEMPERATURE Geochemical modelling of mineral-water reaction between Bavarian bentonite B25 and Opalinus clay pore solution Thermochemical alterations in montmorillonite: Experiment constraints in the presence of organic anion ligands 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 Engineered Barrier 200C – High temperature in-situ experiment Modeling of the HotBENT test using COMSOL Multiphysics Modelling the Disturbed Rock Zone behaviour in a Deep Geological Repository Elastic-plastic components in void ratio with suction Benchmark case for non-isothermal multiphase flow and reactive transport for radioactive waste disposal Experimental and numerical modelling of binary bentonite-based mixture compressibility The influence of faults on the geomechanical properties of Opal-inus Clay – First results from the PF-A experiment Diffusion of dissolved gases in clay: a collaborative modelling exercise of EURAD GAS Experimental Study on Evaluation Method of Apparent Erosion Rate Constant of Bentonite using X-ray CT Images Modeling of gas propagation along a micro-tunnel in the Meuse / Haute-Marne Underground Research Laboratory 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 Modelling gas drainage in argillite pores with SPH method The Hydro-mechanical Interaction between Different Tunnel Support Strategies and the Excavation Damaged Zone (EDZ) Mini GAST: Experimental Upscaling of an Engineered Gas Permeable Seal Laboratory scale experimental assessment of bentonite-sand mixtures Experimental study and numerical modeling of poromechanical be-haviour of Callovo-Oxfordian claystone under drained and undrained conditions Hydro-mechanical Properties of Rock and Bentonite Mixtures for Gas Management within Geological Disposal Facilities |
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| 2:30pm - 3:50pm |
PS #13: HM Processes Location: Roter Saal Chair: Wiebke Baille, Ruhr-Universität Bochum, Germany Chair: Xavier Sillen, ONDRAF/NIRAS, Belgium Hydraulic parameter estimations from borehole testing: evaluating the impact of hydro-mechanical processes in low-permeability clay formations 2:50pm - 3:10pm A physically motivated model concept for the retention behaviour of swelling clayey media in the context of coupled THM simulations 3:10pm - 3:30pm Changes in swelling pressure distribution on radially swollen bentonite buffer surfaces 3:30pm - 3:50pm Hydro-mechanical behaviour and microstructural evolution of recompacted Opalinus Clay as backfilling material |
PS #14: Colloid formation from bentonite Location: Bonatz Saal Chair: Mika Olavi Niskanen, Posiva Oy, Finland Chair: Christophe Tournassat, Universtité d'Orléans (France) / Lawrence Berkeley National Laboratory (USA), France Lessons learned from 25 years of experiments on erosion & colloid formation from compacted bentonite 2:50pm - 3:10pm Montmorillonite colloid erosion in low ionic strength water under stagnant and flow conditions studied in artificial fractures 3:10pm - 3:30pm Numerical modelling of bentonite mass losses due to expansion, erosion, and sedimentation within thin fractures 3:30pm - 3:50pm Quantification of bentonite mass loss in shear zone from CT scans using digital rock physics and machine learning approach: example from the LIT experiment (GTS, Switzerland) |
PS #15: Numerical tools for HMC processes Location: Blauer Saal Chair: María Victoria Villar, CIEMAT, Spain Chair: Lucie Hausmannova, SÚRAO, Czech Republic Hydro-chemo-mechanical modelling of bentonite-based seals - understanding key couplings for long-term performance 2:50pm - 3:10pm Numerical tool for THCM equilibrium conditions in bentonite 3:10pm - 3:30pm HMC simulation of swelling pressure test on bentonite using the double structure model considering the surface phenomena of mineral crystal 3:30pm - 3:50pm VARS global sensitivity analyses of key geochemical variables for the long-term geochemical evolution of a geological repository |
| 3:50pm - 4:20pm |
Coffee Break Location: In front of the lecture halls |
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| 4:20pm - 6:00pm |
PS #16: (T)HM experiments Location: Roter Saal Chair: Patrik Sellin, SKB, Sweden Chair: Wiebke Baille, Ruhr-Universität Bochum, Germany Novel insights into shales and claystones behaviour: results from recent testing campaigns 4:40pm - 5:00pm Innovative use of distributed fibre optics for assessing the strain field evolution of Opalinus Clay during gas invasion 5:00pm - 5:20pm Exploring the thermo-hydro-mechanical behaviour of a plastic deep clayey formation under oedometer conditions 5:20pm - 5:40pm Hydro-mechanical behaviour of Boom Clay investigated through high capacity consolidated drained triaxial tests. 5:40pm - 6:00pm Thermal effects on the drained triaxial compressive and tensile strengths of a transversely isotropic claystone |
PS #17: Repository engineering Location: Bonatz Saal Chair: Shigeru Kubota, Nuclear Waste Management Organization of Japan, Japan Chair: Amade Halasz, PURAM, Hungary The Integrated Geomodel for the Swiss nuclear waste deep geological repository: towards a digital twin for project optimization 4:40pm - 5:00pm Virtual and augmented reality as a cutting-edge technology for modelling of nuclear waste repositories 5:00pm - 5:20pm Sand-claystone mixtures: Investigating the impact of sand proportions on hydro-mechanical behavior at different scales 5:20pm - 5:40pm Long-term soil-structure interaction for tunnels in poorly indurated clay in the HADES Underground Research Laboratory (Mol, Belgium) 5:40pm - 6:00pm Experimental study on the shear strength and deformation characteristics of normally consolidated reconstituted Boom clay |
PS #18: Gas related processes Location: Blauer Saal Chair: Simon Norris, Nuclear Waste Services, United Kingdom Chair: Irina Gaus, Nagra, Switzerland NEMESIS: diffusion of dissolved neon in the HADES URL 4:40pm - 5:00pm Diffusion measurements in natural and synthetic clay-based materi-als: comparison between volumetrically constrained and isotropically stressed samples with differing mineralogy 5:00pm - 5:20pm Full-3D THM-G Modelling of Gas Permeable Seal Test (GAST) Under Localized Gas Flow Configuration 5:20pm - 5:40pm Investigation of Gas Transport and Penetration in Saturated Callo-vo-Oxfordian Claystone Using X-ray Microtomography and Digital Volume Correlation 5:40pm - 6:00pm Effect of the heterogeneity on the gas transport properties of dif-ferent pellet/powder bentonite mixtures |
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