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SUMMARY:Geomechanical Know-how in Design of Underground Isolation System f
 or Nuclear Waste 
DTSTART:20091026T161500
DTSTAMP:20260429T121112Z
UID:dfbd54aeee891cb70d9b6ed49789c6f641416d4c6d39c3f8575a3043
CATEGORIES:Conferences - Seminars
DESCRIPTION:Prof Lyesse Laloui\, Soil Mechanics Laboratory\, IIC-ENAC\nIn 
 all nuclear power generating countries\, the management of spent nuclear f
 uel and long-lived radioactive waste is an important environmental issue. 
 A promising option for waste disposal is the burial in deep clay geologica
 l formations. A safety analysis for a geological repository for high-level
  and/or long-lived radioactive waste needs to be addressed both in reposit
 ory design and in performance assessment. Therefore analyses and predictio
 ns about the behaviour of isolation barriers need to be based on robust sc
 ience. This implies a good understanding of the fundamental behaviour of t
 he argillaceous materials and state-of-the-art modelling. In many proposal
 s for deep geological repositories in Europe\, the argillaceous materials 
 constitute either the main barrier or an important element of the multi-ba
 rrier system. They can be either the host material or engineered parts of 
 the repository (i.e. buffer materials such as compacted swelling clays). T
 he purpose of this seminar is to show the know-how of the Soil Mechanics g
 roup of EPFL\, in identifying the fundamental mechanical behaviours of arg
 illaceous materials in the context of deep repository experiments and anal
 ysing them in a new comprehensive Thermo-Hydro-Mechanical stress-strain co
 nstitutive framework.
LOCATION:GR B3 30
STATUS:CONFIRMED
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