为了解煤层开采后采空区上方地面建筑物、铁路路基等可能发生的变形和采取保护措施的必要性,要求在煤层开采以前对采区上方的地表进行移动和变形的预计。目前我国采用的预计方法主要有典型曲线法,负指数函数法和误差积分法。这些方法都是在开采面积规则时用来计算盆地主断面上的移动和变形的。对于非主断面 In order to understand the possible deformation of ground structures above the goaf, such as the railway subgrade, and the necessity of taking protective measures after coal mining, it is required to predict the movement and deformation of the ground above the mining area before mining. At present, the main methods used in our country are typical curve method, negative exponential function method and error integration method. These methods are used to calculate the movement and deformation of the main section of the basin when mining area rules. For non-main section