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: Tuesday, 26/Nov/2024 | |||
| 8:00am - 8:30am |
Registration |
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| 8:30am - 10:00am |
Plenary #2: Geochemistry Location: Eilenriedehalle B Chair: Thorsten Schäfer, Friedrich-Schiller-Universität Jena, Germany Chair: Erika Anne Cornelia Neeft, COVRA, Netherlands, The Porewater extraction techniques from clay-rich sedimentary rocks 9:00am - 9:20am Elucidating the fate of hydrogen by means of deuterium gas injections: an in-situ experiment in Opalinus Clay 9:20am - 9:40am Effect of nitrate on in situ Se(VI) reduction in Opalinus Clay 9:40am - 10:00am High-resolution, integrated, chemically consistent sorption and diffusion data for radionuclide transport models: Examples from Switzerland for site characterisation |
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| 10:00am - 10:30am |
Coffee Break Location: Eilenriedehalle A |
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| 10:30am - 12:00pm |
Plenary #3: High temperature effects Location: Eilenriedehalle B Chair: Irina Gaus, Nagra, Switzerland Chair: Reiner Dohrmann, LBEG, Germany Invited Keynote: Liange Zheng (Lawrence Berkeley National Lab, United States of America) "Understanding bentonite buffer under high temperature: modeling and tests"
Invited Keynote Understanding bentonite buffer under high temperature: modeling and tests 11:00am - 11:20am Clays at elevated temperature – key results of EURAD HITEC WP 11:20am - 11:40am Smectite alteration in ABM bentonites? New insights from layer charge measurements 11:40am - 12:00pm Heating load increase after 8 years of heating and related THM processes observed in the Full-Scale Emplacement (FE) experiment at Mont Terri |
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| 12:00pm - 12:30pm |
2 min poster presentation #2 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 #2 Location: Eilenriedehalle A Suitability investigations of Lithuanian clay formations for the deep geological repository of radioactive wastes Modelling of unsaturated homogenisation with an enhanced bentonite material model using COMSOL Multiphysics CEC as quality proof for smectitic phases in lower Cretaceous clay rocks – illite-smectite ± pure smectite? Multi-scale 2D and 3D characterisation for enhanced understanding of UK lower strength sedimentary rocks. Unravelling the depositional model of the Opalinus Clay using grain-size variability Influence of texture on the chloride accessible porosity fraction explored by SEM and µCT data Exploring the dynamics of aquifer - aquitard systems: new insights from 81Kr model ages Mont Terri BIM — Project overview and technical realisation Geochemistry and pore water in the lower confining units of the Opalinus Clay at Mont Terri Rock Laboratory (Switzerland) Underground storage of high-grade radioactive waste in mudrock: In search of the Holy Grail Development and Emplacement of an Annular Grout Envisaged for HLW Emplacement Drifts to Study Long-Term Interaction with Opalinus Clay Monitoring fluid movement and swelling pressure development in semi-technical scale Sandwich sealing system experiments 3D Hydro-Mechanical modelling to support the design of the REG experiment in the Callovo-Oxfordian Claystone Excavation of the Konrad 2 shaft landing station in a clay and marl claystone: geotechnical challenges and support solutions Development of Boron-Enhanced Metakaolin-Based Geopolymers for the Immobilisation of Radioactive Debris with the potential of Neutron Absorption Performance of MoxOy pH sensor prepared by thermal oxidation for the long term monitoring of nuclear waste disposals Influence of microstructure and pore saturation in measuring corro-sion rates of a carbon steel API 5L X65 in contact with cement grout in future nuclear waste disposal program Differentiation of fractures and rock mass deformation in clay rocks by Machine Learning Large-scale reactive transport simulations of uranium migration in Opalinus Clay accelerated by means of surrogate models Measurement of pore water density in a bentonite using decalin Development of test specimens for evaluating permeability measurements of tight rocks CP1 and Tribicarb-3D: unique long term and large scale in situ migration tests in Boom Clay at the HADES Underground Research Laboratory EFFECT OF REDOX STATE ON THE REDOX SENSITIVE ELEMENT RETENTION BY APTIAN SANDS Mechanochemical activation of synthetic Na-n-micas – applications in retention of high-level radioactive waste Development of a separation method for Am-, Sr-, Pu- and U-isotopes in concrete using extraction chromatography Migration behaviour of Ra-226 in the sandy facies of Opalinus Clay Donnan equilibrium in compacted bentonite Neptunium migration in Opalinus Clay - one experiment with multiple numerical geochemical solutions Effective diffusivity prediction by considering multivariable regression and rock properties Harnessing microbial processes consuming hydrogen in radioac-tive waste repositories Geochemical processes in a repository with clay barriers at high saline conditions Cement-Bentonite Interaction with Different Cement Materials at Elevated Temperatures 2: Modeling Comparison of different iron/bentonite exhibition tests and effect of the type of exchangeable cation on corrosion products Sulfide Transport Through MX-80 Bentonite Under Various Geochemical Conditions Concrete-clay interaction – a systematic review and modelling study Studying the reactive transport of CO2 in Opalinus Clay with experimental and numerical analyses Exchangeable and soluble ion populations in semi-technical scale Sandwich sealing system experiments Delving into Bentonite Sedimentation Dynamics Leaching kinetics of metakaolin in alkaline solution Reactive transport model of the long-term geochemical evolution in the near field of a HLW repository at the disposal cell scale: sensitivi-ties, variants and model simplifications MINFF: A new classical forcefield for (clay-)minerals Five-year laboratory tests of thermo-hydro-mechanical-chemical evolution of compacted bentonite: an experimental and modelling study Deriving a Method for Host Rock specific Temperature Compatibility: Clay Rock Influence of temperature on the self-sealing of fractures in the Callovo-Oxfordian claystone Conclusions on the post-yield behaviour of Opalinus claystone from multistage triaxial tests Effect of pore water salinity on the tensile strength of Boom Clay THM-Modelling of the ALC1605 in situ heating experiment in Cal-lovo-Oxfordian clay formation Open-source implementation of a transversely isotropic elasto-visco-plastic damage model for clay shales in MFront and OpenGeoSys Numerical simulation of bentonite saturation at different temperatures Temperature history effect on swelling pressure of Kunigel-V1 bentonite cured in confined condition Evolution of gases in an unsaturated bentonite buffer Changes in swelling and hydrological characteristics of compacted bentonite by heating at 200 °C Current status of the in-situ interaction experiment at the Bukov URF Sampling, Measurements and Analysis of the Clay Barriers in the Prototype Repository at Äspö HRL Investigating thermal coupling in a bentonite buffer Research into the Impact of Non-homogeneity on the Integrity of Bentonite Materials TH-Modelling for the in-situ HotBENT experiment at the Grimsel Test Site Influence of sand mixture on gas pressure for bentonite Changing of axial strains in creep performance for bentonite-sand mixture Cation exchange simulation in Wyoming-type bentonite considering mechanical issues Benchmarking of Double-Structure Models for the Numerical Simulation of Swelling Clays 3D Modelling of Coupled Hydro-Mechanical Processes in Fractured Opalinus Clay Shale Impact of desaturation on the diffusion of gases in clay-based samples Young’s modulus in claystones – adding complexity, reducing uncertainty Gas breakthrough simulation using bimodal porosity and mul-tiscale approach Interactions at the interface between EBS-components of a repository for nuclear waste in claystone formations Development of a two-phase hysteretic model accounting for water and gas entry pressure for evaluating hysteretic hydrodynamic properties of clay-based materials in a deep geological repository for radioactive waste Testing device for the visualisation of gas-driven cracks in clays Erosion of compacted bentonite at elevated temperature Observations and Quantification of Gas Flow in Sand-Bentonite Mixtures using Analogue Tests FE-G: 10 years of gas dynamics observations at the Full-Scale Emplacement experiment (Opalinus Clay, Mont Terri, CH) 14 years long Gas Experiment in borehole PAC1011 at ANDRA’s Un-derground Research Laboratory: Modelling the injection and transport of an Argon/Helium gas mixture in the Callovo-Oxfordian Claystone under in situ conditions Microstructural Examination of Gas Migration Influence in Heterogeneous Pellet/Powder Bentonite Mixtures Using X-ray Computed Micro-Tomography |
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| 2:30pm - 3:50pm |
PS #7: Mineralogical and hydrogeochemical characteristics Location: Roter Saal Chair: Mieke De Craen, SCK CEN / EURIDICE, Belgium Chair: Johanna Lippmann-Pipke, Bundesanstalt für Geowissenschaften und Rohstoffe, BGR, Germany Which porosity domains in clay-rich rocks are sampled by squeezing and advective displacement tests? 2:50pm - 3:10pm Oxygen isotope exchange between groundwater and calcite unravels million-year long hydrogeochemical evolution of a deep sedimentary aquifer 3:10pm - 3:30pm Ab initio MD modelling of Ni2+, Zn2+, and Lu3+ cation adsorption on saponite edge surfaces 3:30pm - 3:50pm A XAS study on the effect of ionizing radiation on the redox state of the structural iron in Bentonite clay |
PS #8: THM heater experiments Location: Bonatz Saal Chair: Patrik Sellin, SKB, Sweden Chair: Weimin YE, Tongji University, China, People's Republic of Dismantling of the Mock-Up-Josef in-situ experiment after 10 years of operation – Comprehensive analysis of the bentonite barrier 2:50pm - 3:10pm The LOT S2 and A3 experiments at Äspö hard rock laboratory, Sweden – impact on bentonite performance after 20 years of heat-ing at 90 and 130°C 3:10pm - 3:30pm THM modelling for HotBENT experiment using the water retention curve assumed by Bayesian inference 3:30pm - 3:50pm Elastic-viscoplastic modelling of the PRACLAY large-scale in situ heater test |
PS #9: THM modelling Location: Blauer Saal Chair: Wolfram Rühaak, BGE Bundesgesellschaft für Endlagerung mbH, Germany Chair: Olaf Kolditz, Helmholtz-Zentrum für Umweltforschung GmbH UFZ, Germany The International DECOVALEX Initiative - Building Confidence Via Model Comparison 2:50pm - 3:10pm Numerical modelling of heating induced cracking process by phase-field method considering thermo-hydromechanical coupling 3:10pm - 3:30pm Implementation of a temperature-dependent constitutive model for argillaceous hard soils – weak rocks in MFront 3:30pm - 3:50pm Outcome of a THM modelling benchmark on the effect of heating on clay formations |
| 3:50pm - 4:20pm |
Coffee Break Location: In front of the lecture halls |
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| 4:20pm - 6:00pm |
PS #10: Geochemistry and fluid migration Location: Roter Saal Chair: Christophe Tournassat, Universtité d'Orléans (France) / Lawrence Berkeley National Laboratory (USA), France Chair: Juan Carlos Mayor, Enresa, Spain Profiles of natural tracers in porewater of a Mesozoic rock sequence in northern Switzerland 4:40pm - 5:00pm Quantifying the evolution and transport of helium in porewater across the Mesozoic sedimentary sequence in northern Switzerland 5:00pm - 5:20pm Transport characteristics and barrier quality of a 134 m thick Opalinus Clay formation in southern Germany obtained from its porewater noble gas profile 5:20pm - 5:40pm Multiscale experimental comparison of water diffusion by neutron tomography in a porous clay medium partially water-saturated 5:40pm - 6:00pm Streamlined modelling approach for transport of natural organic matter linked transport of radionuclides in Boom Clay |
PS #11: THM bentonite Location: Bonatz Saal Chair: Weimin YE, Tongji University, China, People's Republic of Chair: María Victoria Villar, CIEMAT, Spain Homogenisation in small-scale swelling tests with different water inflow rates 4:40pm - 5:00pm Cross-scale assessment of the hydromechanically coupled behavior of two German bentonites 5:00pm - 5:20pm Thermo-hydro-mechanical modelling of bentonite using a double-porous hypoplastic bentonite model in OpenGeoSys/MFront: implementation, verification and validation 5:20pm - 5:40pm Modelling the Full Scale Heater Experiment: Results of the international Benchmark Project DECOVALEX 5:40pm - 6:00pm Hierarchical benchmarking of Richards-based thermo-hydro-mechanical coupled models for repositories of high-level radioactive waste |
PS #12: Performance and uncertainty assessment Location: Blauer Saal Chair: Xavier Sillen, ONDRAF/NIRAS, Belgium Chair: Wolfram Rühaak, BGE Bundesgesellschaft für Endlagerung mbH, Germany Performance assessment modeling at the repository and component level for the Swiss deep geological repository 4:40pm - 5:00pm Post-closure evolution of voids in geological disposal facility vaults and implications for containment 5:00pm - 5:20pm Uncertainty quantification of the elasto-viscoplastic behavior of COx claystone and long-term stability assessment of the drift’s concrete liner 5:20pm - 5:40pm Comparing uncertainty quantification methods in the context of safety analyses for high-level nuclear waste disposal systems 5:40pm - 6:00pm Modelling the impact of design variations in a spent nuclear fuel repository on near-field sulfide fluxes and Cu canister corrosion depths |
| 6:00pm - 11:59pm |
Conference dinner Location: Hangar No. 5 |
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