Modelling a mine-by test at the Mont Terri rock laboratory, Switzerland

Corkum, A. G.; Martin, C. Derek

doi:10.1016/j.ijrmms.2006.12.003

Cited by 55 publications

(33 citation statements)

References 9 publications

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“…Based on laboratory measurements, Corkum and Martin (2007b) developed an empirical relation for describing the stress dependence of Young's modulus in Opalinus clay. Corkum and Martin (2007a) then performed modeling studies of a mine-by test at the Mont Terri site, Switzerland, and found that a significant portion of the short-term behavior within the damaged zone can be captured using the empirical relation for Opalinus Clay.…”

Section: Stress-strain Relationshipmentioning

confidence: 99%

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Modeling Coupled Processes in Clay Formations for Radioactive Waste Disposal

Liu¹

2010

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Section: Stress-strain Relationshipmentioning

confidence: 99%

“…As a matter of fact, a theoretical relation for such stress dependence is given in Eq (2-11). We will use the data from Corkum and Martin (2007b) to verify Eq (2-11).…”

Section: Stress-strain Relationshipmentioning

confidence: 99%

Modeling Coupled Processes in Clay Formations for Radioactive Waste Disposal

Liu¹

2010

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“…To minimize the boundary effect on the areas of interest in the model while limiting the number of model elements to a reasonable size, some simplifications with regard to model size and boundary conditions were selected. Referring to the previous studies on tunnels in Opalinus Clay (Corkum and Martin, 2007b;Shao et al, 2008;Popp et al, 2008), in our study, the Z-axis was set as vertical in the model, while the horizontal Y-and X-axes were aligned parallel and perpendicular to the tunnel, respectively. The dimensions of the model were 60 m in the X-direction, 1 m in the Y-direction, and 60 m in the Z-direction.…”

Section: Model Geometrymentioning

confidence: 99%

“…For this reason, a number of investigations have been conducted, and the corresponding results of these studies have been published. The mechanical parameters employed in this study range from laboratory experiments and to field research (Corkum et al, 2007b;Zhang et al, 2008b;Bock, et al, 2010;Jobmann et al, 2010). The strength and deformation properties of Opalinus Clay at dried state are shown in …”

Section: Boundary Conditions and Materials Parametersmentioning

confidence: 99%

Investigations of Near-Field Thermal-Hydrologic-Mechanical-Chemical Models for Radioactive Waste Disposal in Clay/Shale Rock

Liu¹

2011

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“…The resulting deformation determines the nature and extent of the EDZ. In clay/shale media this immediate response has been modeled using elastoplastic constitutive equations, and other approaches (Corkum and Martin 2007a;Gens et al 2007). The immediate response is followed by time-dependent pore pressure effects (lasting days or weeks), mechanical creep (lasting years), and response to thermal loading, as discussed below.…”

Section: Excavation/construction Effectsmentioning

confidence: 99%

Shale disposal of U.S. high-level radioactive waste.

Sassani¹,

Stone²,

Hansen³

et al. 2010

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This report evaluates the feasibility of high-level radioactive waste disposal in shale within the United States. The U.S. has many possible clay/shale/argillite basins with positive attributes for permanent disposal. Similar geologic formations have been extensively studied by international programs with largely positive results, over significant ranges of the most important material characteristics including permeability, rheology, and sorptive potential. This report is enabled by the advanced work of the international community to establish functional and operational requirements for disposal of a range of waste forms in shale media. We develop scoping performance analyses, based on the applicable features, events, and processes identified by international investigators, to support a generic conclusion regarding post-closure safety. Requisite assumptions for these analyses include waste characteristics, disposal concepts, and important properties of the geologic formation. We then apply lessons learned from Sandia experience on the Waste Isolation Pilot Project and the Yucca Mountain Project to develop a disposal strategy should a shale repository be considered as an alternative disposal pathway in the U.S.Disposal of high-level radioactive waste in suitable shale formations is attractive because the material is essentially impermeable and self-sealing, conditions are chemically reducing, and sorption tends to prevent radionuclide transport. Vertically and laterally extensive shale and clay formations exist in multiple locations in the contiguous 48 states. Thermal-hydrologicmechanical calculations indicate that temperatures near emplaced waste packages can be maintained below boiling and will decay to within a few degrees of the ambient temperature within a few decades (or longer depending on the waste form). Construction effects, ventilation, iv and the thermal pulse will lead to clay dehydration and deformation, confined to an excavation disturbed zone within a few meters of the repository, that can be reasonably characterized. Within a few centuries after waste emplacement, overburden pressures will seal fractures, resaturate the dehydrated zones, and provide a repository setting that strongly limits radionuclide movement to diffusive transport. Coupled hydrogeochemical transport calculations indicate maximum extents of radionuclide transport on the order of tens to hundreds of meters, or less, in a million years. Under the conditions modeled, a shale repository could achieve total containment, with no releases to the environment in undisturbed scenarios. The performance analyses described here are based on the assumption that long-term standards for disposal in clay/shale would be identical in the key aspects, to those prescribed for existing repository programs such as Yucca Mountain.This generic repository evaluation for shale is the first developed in the United States. Previous repository considerations have emphasized salt formations and volcanic rock formations. Much of the experience gaine...

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Modelling a mine-by test at the Mont Terri rock laboratory, Switzerland

Cited by 55 publications

References 9 publications

Modeling Coupled Processes in Clay Formations for Radioactive Waste Disposal

Modeling Coupled Processes in Clay Formations for Radioactive Waste Disposal

Investigations of Near-Field Thermal-Hydrologic-Mechanical-Chemical Models for Radioactive Waste Disposal in Clay/Shale Rock

Shale disposal of U.S. high-level radioactive waste.

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