在调查区内现存地面塌陷的基础上,根据采空区分布及相关数据,分析计算采空区影响范围及程度。采用概率积分法计算地面的移动和变形值,从而绘制出地面塌陷沉降等值线图,为当地政府采取防治措施及进行相关决策提供依据。 Based on the existing ground collapse in the investigation area, the area and extent of the impact of the goaf are analyzed and calculated according to the distribution of the goaf and relevant data. Probabilistic integration method is used to calculate the movement and deformation of the ground, so as to draw the contour map of the settlement of the ground subsidence and provide the basis for the local government to take prevention and control measures and make relevant decisions.