Model development and calibration for the coupled thermal,hydraulic and mechanical phenomena of the bentonite |
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| Authors: | Masakazu Chijimatsu Lenart Börgesson Tomoo Fujita Petri Jussila Son Nguyen Jonny Rutqvist Lanru Jing |
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| Affiliation: | (1) Hazama Corporation, 2-2-5, Toranomon, Minato-ku, Tokyo 105-8479, Japan;(2) Clay Technology, Lund, Sweden;(3) Japan Atomic Energy Agency, Tokai, Japan;(4) Helsinki University of Technology, Helsinki, Finland;(5) Canadian Nuclear Safety Commission, Ottawa, Canada;(6) Lawrence Berkeley National Laboratory, Berkeley, USA;(7) Royal Institute of Technology, Stockholm, Sweden |
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| Abstract: | In the international DECOVALEX-THMC project, five research teams study the influence of thermal-hydro-mechanical (THM) coupling on the safety of a hypothetical geological repository for spent fuel. In order to improve the analyses, the teams calibrated their bentonite models with results from laboratory experiments, including swelling pressure tests, water uptake tests, thermally gradient tests, and the CEA mock-up THM experiment. This paper describes the mathematical models used by the teams, and compares the results of their calibrations with the experimental data. |
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| Keywords: | DECOVALEX Radioactive waste |
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