Research on prediction of soil water behavior during ground freezing under closed system condition

In order to control the frost damages by frost heaving or the translation of harmful object by pore water seepage, interception layer of capillary flow is constructed in the ground. In this paper, laboratory freezing test used by fine grained sand were put into operation and details of water migration, heat flow and water pressure change were measured under closed system conditions. The results of experiments were compared to the results of numerical analyses using integrated finite difference method with coupled heat and ground water movement. It is confirmed that the simulation of ground water movement is probable in unsaturated conditions.