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Sugita, Yutaka; Kawakami, Susumu
Japan Nuclear Cycle Development Inst., Tokai, Ibaraki (Japan)2003
Japan Nuclear Cycle Development Inst., Tokai, Ibaraki (Japan)2003
AbstractAbstract
[en] JNC has joined the international joint project, Tunnel Sealing Experiment (TSX Project), with AECL at the Underground Research Laboratory (URL) in Canada. Sealing technologies considered in the sealing concept are applied in the underground tunnel in the TSX project to study the sealing performance of such technologies. The sealing technologies contain backfilling, plugging, grouting and so on. This project mainly focuses on the plugging. This Project researches both the mechanical plug and the hydraulic plug. The mechanical plug is the concrete plug, and the hydraulic plug is the clay-based plug. The pressurized water is injected in the pressure chamber installed between the concrete plug and the clay-based plug. The sealing performance was studied using water seepage from the both plugs. This report summarizes the experimental conditions and monitoring items on this experiment. (author)
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Mar 2003; 49 p; Available from JICST Library (JICST: Japan Science and Technology Corporation, Information Center for Science and Technology), P.O. Box 10 Hikarigaoka, Tokyo 179-9810 Japan, FAX: +81-3-3979-4781, JICST Service Homepage: www.jst.go.jp/EN/; 5 refs., 35 figs., 1 tab.
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