煤矿井巷开采形成的采空区对地表的稳定性影响是巨大的，如何准确地确定煤矿采空区对地表的稳定性影响程度成为一个重要的课题。通过工程实例，应用解析法计算了煤矿采空区覆岩稳定性和采空区的残余变形，并根据计算结果对地表稳定性进行了评价。同时，利用数值模拟法就煤矿采空区对地表变形的影响程度进行了计算。对解析法、数值模拟法的计算结果的异同进行了比较，分析了产生差异的原因，为煤矿采空区对地表稳定性影响评价提供了快捷的方法。%The gob area has a huge impact on surface stability, how to accurately determine the impact of the gob area on the surface stability has become an important subject. In this paper, the stability of the overlying strata and the residual deformation of the gob area were calculated through the project example and by using the analytical method, and evaluation was carried out on the stability of the ground surface according to the calculated results. Meanwhile, calculation was conducted on the impact degree of the gob area by numerical simulation. The differences of the calculated results obtained by both analytical method and numerical simulation method were compared and the causes of the difference generation were analyzed, all of these provided a quick method for evaluating the surface stability of the gob area in the coal mine.
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