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U.S. Department of Energy
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Thermal analysis of options for spent fuel disposal in Switzerland

Conference ·
OSTI ID:572259
 [1]; ;  [2]
  1. Obayashi Corp., Tokyo (Japan). Civil Engineering Technical Div.
  2. NAGRA, Wettingen (Switzerland)
In parallel to studies of disposal of vitrified high-level waste from reprocessing, projects have been initiated to examine options for direct disposal of spent fuel in Switzerland. The basic concept involves in-tunnel emplacement of encapsulated spent fuel in a deep repository which is backfilled with compacted bentonite. Two possible host rocks are considered--crystalline basement and Opalinus Clay. This paper reports the results of a thermal analysis which was carried out to evaluate constraints on repository layout set by the desire to limit temperatures experienced by the bentonite backfill.
OSTI ID:
572259
Report Number(s):
CONF-961202--
Country of Publication:
United States
Language:
English