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中文摘要：
引入渗透迁移方程,将所开发的饱和—非饱和孔隙介质中热—水—应力耦合弹塑性模型及其二维有限元程序进行了扩展和改进,使之可以同步地对温度场、渗流场、应力场和放射性核素浓度场的变化进行解析。然后针对一个假想的核废料处置库算例,考察了在热—水—应力—迁移耦合作用条件下近场温度、孔隙水压力及放射性核素浓度的分布及变化。
英文摘要：
The elastoplastic model and the relative 2D FEM code were extended and improved to analyze coupled thermo-hydro-mechanical process in saturated-unsaturated porous media through introducing the percolation and migration equation, so that the code could be used for solving the temperature field, flow field, stress field and nuclide concentration field at the same time. Then through a computation example of an assumed nuclear waste repository the distribution and variation of temperature, pore pressure and nuclide concentration in the near field were investigated under the condition of thermo-hydro-mechanical-migratory coupling.
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