季节性冻土的冻胀试验系统及应用

Experimental System of Frost-Heave for Seasonal Frozen Soil and its Application

介绍了季节性冻土的冻胀试验系统的组成及冻土的冻胀参数的测量方法,并利用该系统对某冻胀性试验土样的冻胀参数进行一个自然冻融周期的观测,得到土温、气温、冻融深度、冻胀力、冻胀位移等数据的变化曲线,通过分析试验数据得出土的冻胀参数变化规律。

The experimental system of frost-heave for seasonal frozen soil and the measure methods of frozen soil frost-heave parameters were introduced. With the experimental system, the parameters of frost-heave of the test sample were measured with one natural frost-melt period. The curves of soil temperature, atmospheric tem- perature,frozen-meh depth, frost-heave force and displacement were got and analyzed. The change current of the frost-heave parameter of the frozen soil was given out.