Concept

High-level radioactive waste management

Publications associées (150)

Sensitive THM coupled analysis of buffer-rock barriers for nuclear waste storage

Lyesse Laloui, Alessio Ferrari, Yafei Qiao

The buffer-rock barriers system is widely proved to be one of the most promising options for isolating high-level radioactive waste from the human environment. To certify the efficiency and provide the additional development regarding design and assessment ...

Crc Press-Taylor & Francis Group2015

Frictional Properties of Opalinus Clay

Marie Estelle Solange Violay, Christophe Nussbaum, Luis Felipe Orellana Espinoza

Opalinus Clay formation (OPA) is an indurated shale under study in the context of geological deep disposal of nuclear waste in Switzerland. We will study the frictional properties of fault zones in OPA to evaluate the long-term safety performance of the re ...

2015

Microbial metabolism in the deep subsurface

Alexandre Bagnoud

Microbes have successfully colonized the deep subsurface, thanks to their small size and their diverse metabolic activities. This part of the biosphere remains a terra incognita for microbiologists, containing innumerable unknown microbial species and proc ...

EPFL2015

Quantitative analysis of deformation in hollow cylinder tests on anisotropic clay formations

Vincent Labiouse, Gioacchino Viggiani, Shuang You

A series of triaxial laboratory experiments are performed on thick-walled hollow cylindrical samples of boom clay. The aim of this testing program is to better understand the anisotropic deformation during the excavation. The testing conditions are similar ...

2015

Hydro-chemo-mechanical characterisation of sand/bentonite mixtures

Donatella Manca

According to Swiss regulations, low and intermediate level wastes (L/ILW) should be stored in deep geological repositories excavated about 300 to 400 meters below the ground surface, in suitable rock formations. The materials used for the construction of t ...

EPFL2015

Trends and Seasonal Patterns in the Composition and Energy Content of Waste from three Ukrainian City Districts: The Influence of Commercial and Residential Areas

Christian Ludwig

The volume and composition of Ukraine’s municipal solid waste (MSW) has changed in recent years. The percentage of paper and plastics has increased considerably; consequently, manual separation of these materials from landfills has become necessary. In 201 ...

2015

Pore structure evolution of compacted granular bentonite during wetting and drying cycles

Lyesse Laloui, Alessio Ferrari, Ali Seiphoori

Deep geological repositories are considered as suitable solutions for the disposal of high level nuclear wastes. In several repository concepts (e.g. in Spain and Switzerland), bentonites are selected as the main component of the engineered barrier to be p ...

2014

Trace concentration - Huge impact: Nitrate in the calcite/Eu(III) system

Kislon Voitchovsky, Moritz Schmidt

The interactions of trivalent lanthanides and actinides with secondary mineral phases such as calcite is of high importance for the safety assessment of deep geological repositories for high level nuclear waste (HLW). Due to similar ionic radii, calcium-be ...

Elsevier2014

Consequences of the Thermal Transient on the Evolution of the Damaged Zone Around a Repository for Heat-Emitting High-Level Radioactive Waste in a Clay Formation: a Performance Assessment Perspective

Vincent Labiouse, Xing Li, Li Yu

A proper evaluation of the perturbations of the host rock induced by the excavation and the emplacement of exothermic wastes is essential for the assessment of the long-term safety of high-level radioactive waste disposals in clay formations. The impact of ...

Springer Verlag2014

Hollow Cylinder Tests on Boom Clay: Modelling of Strain Localization in the Anisotropic Excavation Damaged Zone

Vincent Labiouse, Bertrand François

Boom Clay is extensively studied as a potential candidate to host underground nuclear waste disposal in Belgium. To guarantee the safety of such a disposal, the mechanical behaviour of the clay during gallery excavation must be properly predicted. In that ...

Springer Verlag2014

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