基建场地下伏采空区剩余沉降量的数值模拟

Numerical Simulation of Residual Subsidence in an Underlying Mining Goaf Area of Capital Construction Site

基建场地下伏采空区剩余沉降量的计算是确定采空区危害程度的一种有效方法。该文应用有限差分数值计算方法对山西阳泉市西沟新村基建下伏采空区剩余沉降量进行计算,经与实测资料和其它方法结果的对比,十分吻合。实践证明,在正确确定采空区覆岩地质力学模型的前提下,应用数值模拟计算采空区剩余沉降量,可获得符合场地实际的有益结果。

The calculation of residual settlement in an underlying mining goaf area of capital construction site is an effective method to determine the hazards grade of mining goaf area.The residual settlement is calculated in an underlying mining goaf area of capital construction site of Xigou new village in Yangquan City by using FDM,through the comparison of the actual data with the results of other methods,the results are consentaneous.Proved by practice,under the premise of right determining the geomechanical model of overlaying rock in mining goaf area,the useful results are in line with the actua site by numerical simulation method to calculate the residual settlement.