摘要(英) |
A nuclear fuel waste final disposal must provide protection to the creatures and the environment from the hazards of contaminant release.There are many international studying and evaluation about the abject.
Considering of safety, technology and economy, the method of deep geologic disposal is regarded as the most safety and stable way.
In this study, based upon the concept of the deep disposal method, thinking about the thermal, hydrological and mechanical properties of the paper in Sweden. In addition of considering the size of repository, initial condition and boundary condition of the internal paper. Using the “staggered solution technique” to make coupled of thermal-hydro-mechanical calculations by finite element code ABAQUS.
After the completion of the emplacement, filling and sealing .The invasion of the groundwater is not avoidable. The hydraulic conductivities of materials and pore pressure boundary condition will influence the rate of saturation. In the buffer material, the increasing saturation would cause the thermal conductivity to go up.
The fast diffuse heat would result in structurally unstable of thematerials.
The study directed at the influences of the saturation histories on the thermal conductivity of buffer material, to make the scoping analyses. In the results, the maximum temperature in the repository has obvious change due to the saturation histories.
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