黏土体失水引起的地表下沉计算方法研究

Study on Calculation Methods for Surface Subsidence Caused by Water Loss of Clay

为了更加精确地计算厚冲积层矿区的煤矿开采沉陷问题,减小采动损害与环境破坏,基于煤矿开采沉陷计算的概率积分法,探讨了由于黏土体失水引起的地表沉陷计算问题,推导了黏土体失水引起的地表下沉计算公式,并应用于煤矿实际地表沉陷,加以分析论证.研究结果表明黏土体失水对地表沉陷的影响比较大.因此黏土体失水对地表沉陷的影响是不能忽略的.

In order to accurately calculate the mining induced subsidence in thick alluvium areas so as to decrease the mining damage and environment disruption, the calculation of surface subsidence caused by water loss of clay was discussed based on probability integral method and used in a real case. The results show that the water loss of clay has a great impact on surface subsidence. So this problem should not be overlooked.