WIT Press


The Effects Of Long-term Thermal Load On The Stability Of The Lining Of A Deep Underground Waste Repository

Price

Free (open access)

Paper DOI

10.2495/RAV090091

Volume

127

Pages

12

Page Range

99 - 110

Published

2009

Size

2,826 kb

Author(s)

J. Pacovský & R. Vašíček

Abstract

The long-term stability of the lining of disposal tunnels is a precondition for the safe removal and reprocessing of spent nuclear waste from deep underground repositories in the near or more distant future. The reason for removing containers with radioactive waste from such repositories lies in the potential discovery of presently unavailable \“perfect” technology for its reprocessing. The stability problems of tunnel linings exposed to the long-term thermal load generated by the waste in the disposal container is the subject of the European TIMODAZ project. Research is being carried out by means of physical modelling. This paper describes the design, construction and currently available results of a laboratory model which has been built at the Centre of Experimental Geotechnics and an \“in-situ” model which has been built at the Josef Underground Educational Facility. Keywords: radioactive waste, reprocessing, thermal load, long-term stability, physical model.

Keywords

radioactive waste, reprocessing, thermal load, long-term stability, physical model