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Report No.

Analytical Assessment of Full-Scale Demonstration of Sealing Technique in Canadian Geological Disposal Facility

Toida, Masaru*; Sasakura, Takeshi*; Atsumi, Hiroyuki*; Suyama, Yasuhiro*; Kobayashi, Ichizo*; Kawabata, Junichi*; Ito, Keijiro*

To establish sealing technique suitable for geological environmental conditions of Japan, it is necessary to obtain data related with this sealing function through laboratory tests and in-situ tests. It also is necessary to put these data to practical use and to establish the estimating method of the sealing technique. Tunnnel sealing experiment, which has been carried out as a joint research between JNC and AECL at URL of AECL Canada, is arriving the final stage and fundamental data relating with the sealing function has almost obtained. This report deals with the total data processing and interpretation of the sealing test, as well as the numerical analysis and interpretation on tracer test results. Concrete plans for the disassembling and sampling of clay and concrete plugs, which is important for the evaluation of function of the sealing system, is also discussed.



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