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Numerical Study on Thermo-Hydro-Mechanical Coupling for Disposal of Radioactive Waste in a Jointed Rock Mass
This research is intended to investigate the basic mechanism for Thermo-Hydro-Mechanically coupled process in a radioactive waste repository in a jointed rock mass. For the study of Thermo-Hydro-Mechanical coupling, several models were used. In the numerical experiment, the main focus was on the heat transfer including convection by groundwater flow through joints in the rock mass. Observation of the coupled thermal, hydraulic and mechanical processes lead us to a better understanding on the waste repository environment based on KBS-3 disposal concept. Groundwater flow into the repository can lower the maximum temperature of the canister. The swelling pressure of bentonite buffer can increase the stability of repository. Also, local tensile failures may occur at the joints intersecting the periphery of the disposal borehole during excavation and thermal loading.
Numerical Study on Thermo-Hydro-Mechanical Coupling for Disposal of Radioactive Waste in a Jointed Rock Mass
This research is intended to investigate the basic mechanism for Thermo-Hydro-Mechanically coupled process in a radioactive waste repository in a jointed rock mass. For the study of Thermo-Hydro-Mechanical coupling, several models were used. In the numerical experiment, the main focus was on the heat transfer including convection by groundwater flow through joints in the rock mass. Observation of the coupled thermal, hydraulic and mechanical processes lead us to a better understanding on the waste repository environment based on KBS-3 disposal concept. Groundwater flow into the repository can lower the maximum temperature of the canister. The swelling pressure of bentonite buffer can increase the stability of repository. Also, local tensile failures may occur at the joints intersecting the periphery of the disposal borehole during excavation and thermal loading.
Numerical Study on Thermo-Hydro-Mechanical Coupling for Disposal of Radioactive Waste in a Jointed Rock Mass
Lee, Sang-Geun (author) / Lee, Chung-In (author)
Geosystem Engineering ; 3 ; 17-23
2000-03-01
7 pages
Article (Journal)
Electronic Resource
Unknown
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