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Thermal Analysis of Options for Spent Fuel Disposal in Switzerland

Published online by Cambridge University Press:  03 September 2012

Tetsuo Sasaki ,
Kenichi Ando ,
Hideki Kaw Amura ,
Jürg W. Schneider  and
Ian G. McKinley
Tetsuo Sasaki
Affiliation:
Design Department No. 2, Civil Engineering Technical Division, OBAYASHI CORPORATION, -2–9 Hongo, Bunkyo-ku, Tokyo 113, Japan.
Kenichi Ando
Affiliation:
Design Department No. 2, Civil Engineering Technical Division, OBAYASHI CORPORATION, -2–9 Hongo, Bunkyo-ku, Tokyo 113, Japan.
Hideki Kaw Amura
Affiliation:
Design Department No. 2, Civil Engineering Technical Division, OBAYASHI CORPORATION, -2–9 Hongo, Bunkyo-ku, Tokyo 113, Japan.
Jürg W. Schneider
Affiliation:
NAGRA, National Cooperative for the Disposal of Radioactive Waste, Hardstrasse 73, CH-5430 Wettingen, Switzerland.
Ian G. McKinley
Affiliation:
NAGRA, National Cooperative for the Disposal of Radioactive Waste, Hardstrasse 73, CH-5430 Wettingen, Switzerland.
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Abstract

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.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 465: Symposium II – Scienfific Basis for Nuclear Waste Management XX , 1996 , 1133
Copyright
Copyright © Materials Research Society 1997

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References

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