| Summary: | 碩士 === 國立成功大學 === 資源工程學系碩博士班 === 101 === From the studies of spent nuclear fuel disposal methods, they indicate that the deep geologic disposal is the most stable and safest agent to dispose the spent nuclear fuel. When the nuclear waste was placed in deep rocks, it will produce higher temperature and effect the properties of deep rocks. The surrounding rocks exist in a stable condition between the fields of temperature and fluid flow originally, but the balance conditions are changed by the external factors such as engineering works. After the completion of emplacement, filling and sealing, the whole process will cause the thermal-hydraulic- Mechanical effects.
In this study, we coupled thermo-hydro-mechanical of near rocks on the geological disposal of nuclear waste by using FLAC3D and TOUGH2. The result shows that coupling of the rock temperature will rise and expand outwards; Tension area is mainly distributed in the crown of the tunnel, bottom of the tunnel and around the storage pit; The center of the storage tunnel will found heat flow phenomenon .
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