A5021883535- Soil and Unsaturated Flow
- Rock Mechanics and Modeling
- Groundwater flow and contamination studies
- Landslides and related hazards
- Geotechnical and Geomechanical Engineering
- Geotechnical and construction materials studies
- Drilling and Well Engineering
- Geotechnical Engineering and Soil Mechanics
- Landfill Environmental Impact Studies
- Hydraulic Fracturing and Reservoir Analysis
- Grouting, Rheology, and Soil Mechanics
- Geotechnical Engineering and Analysis
- Geophysical Methods and Applications
- Geothermal Energy Systems and Applications
- Seismic Imaging and Inversion Techniques
- CO2 Sequestration and Geologic Interactions
- Geotechnical Engineering and Underground Structures
- Concrete and Cement Materials Research
- Hydrocarbon exploration and reservoir analysis
- Seismic Waves and Analysis
- Geological Modeling and Analysis
- Nuclear materials and radiation effects
- Granular flow and fluidized beds
- High-pressure geophysics and materials
- Logic, programming, and type systems
University of Liège
1996-2020
Institut de Radioprotection et de Sûreté Nucléaire
2010-2018
Milieux environnementaux, transferts et interactions dans les hydrosystèmes et les sols
2016
École nationale des ponts et chaussées
2014
Laboratoire Navier
2014
Agence Nationale pour la Gestion des Déchets Radioactifs
2005-2008
Belgian Nuclear Research Centre
1998-2003
Pre-compacted elements (disks, torus) of bentonite/sand mixture are candidate materials for sealing plugs radioactive waste disposal. Choice this material is mainly based on its swelling capacity allowing all gaps in the system to be sealed, and low permeability. When emplaced gallery, these will start absorb water from host rock swell. Thereby, a pressure develop radial direction against axial support structure. In work, small scale compacted disk bentonite sand was experimentally studied...
Two small-scale mock-up tests were carried out on a compacted mixture of bentonite and sand, one with saturation from the bottom only other top bottom. Swelling pressure was monitored at different positions soil sample in both axial radial directions. Results showed that two-side accelerates swelling kinetics by factor 4. The depends swelling, collapse, interaction between layers. Further analysis based relative humidity measurements an infiltration test performed previously variations...
Coupled thermal–hydrological–mechanical (THM) processes in the near field of deep geological repositories can influence several safety features engineered and barriers. Among those are: possibility damage host rock, time for re-saturation bentonite, perturbations hydraulic regime both rock seals. Within international cooperative code-validation project DECOVALEX-2015, eight research teams developed models to simulate an situ heater experiment, called HE-D, Opalinus Clay at Mont Terri...
This paper presents the results of a laboratory testing program that was designed to investigate mechanical behaviour Tournemire argillite. Eighty rock samples were obtained from boreholes drilled at different angles in walls and floor an existing gallery Underground Research Laboratory (URL), France. The experimental consists measurement physical properties argillite its response loading during uniaxial tests, triaxial tests with various confining pressures, unconfined confined cyclic...
Geological disposal of radioactive wastes relies on a multiple barrier system to provide long-term containment and isolation the wastes. The excavation repository creates openings disturbed zones in host rock formations that need be properly sealed. Bentonite-based materials are being considered worldwide as preferred type sealing material, since they possess desirable characteristics such low permeability, high sorption capability, swelling potential allowing them close internal cracks gaps...
Argillaceous rocks are candidate host and (or) cap formations for the geological disposal of nuclear wastes in many countries, including Canada, France, Switzerland. The understanding long-term mechanical behaviour such is an essential requirement assessment their performance as a barrier against radionuclide migration. French Institute Radiological Protection Nuclear Safety (IRSN) operates Underground Research Laboratory (URL) Tournemire, rock formation known Tournemire shale. Many types...
In order to investigate the hydro-mechanical (HM) and chemical perturbations induced in an argillaceous formation by forced ventilation during operational period of a nuclear waste repository, specific experiment has been performed tunnel, at Mont Terri Underground Research Laboratory (URL) Switzerland. This selected international project DECOVALEX for model validation numerical simulation this (VE) is object present paper. Since rock exhibits anisotropic properties, particular attention...
This paper presents the Canadian Nuclear Safety Commission’s modelling of coupled thermal, hydraulic and mechanical (THM) processes their influence on performance engineered barrier system (EBS) host rock. The THM were monitored during a heater experiment called HE-E, performed in an Opalinus Clay formation at Mont Terri Rock Laboratory Switzerland. HE-E experimental set-up consisted two EBS sections emplaced existing tunnel Underground Laboratory. focuses model development, parametric...