高压实膨润土热湿耦合效应实验室模拟

Thermal Lyararlic corpled experiment on highly compacted bentonite

本文研究了作为高放废物深地质处置库最后一道人工屏障——缓冲层在热湿耦合作用下的宏观表现，通过自行设计的实验，得到了一些有益的启示，初步认为在本研究涉及的时间范围内，水势场对高压实膨润土中温度场分布影响较小，而温度场对其中水分运移有一定影响。文中介绍了有关实验设计、实验步骤、实验结果与分析。

Highly compacted bentonite blocks have been heated and hydrated in the laboratory in order to simulate the conditions of buffer material in a high level radivactive waste repository.Temperature distribtuions at different times,final water content have been measured.The results show that the temperature field in little affected by hydration process,but moisture fransport in a little affected by the local thernal gradient.