关键词: 工作面推进度, 开采沉陷, 时间影响函数, 地表移动变形

Abstract: In order to study the influence of the ground movement deformation caused by the advancing speed of the working face, through the application of probability integral prediction model of mining subsidence which combined with the time influence function of Knothe, the ground movement deformation of speeds 5m/d and 2m/d were studied and analyzed under a certain geological mining condition. It is found that the dynamic peak of surface movement curve is inversely proportional to the advancing speed, which is to improve the advancing speed, which can reduce the surface damage, but cannot reduce the destruction of the surface of the first cut and the stop line. The results are important for the prevention and control of mining subsidence.