下沉速度法研究地表移动变形分布规律

在地质采矿条件变化不大时，从地表点的下沉速度出发，取随开采工作面一起移动的动坐标建立动坐标系，研究地表点下沉速度的分布规律，得到地表下沉速度分布曲线，并对地表点在整个下沉时间过程的速度曲线进行积分，得到动态地表主断面上的地表下沉分布公式，并在此基础上经过一系列转换，得到地表任意点下沉、倾斜、曲率、水平移动、水平变形公式。公式简单，便于应用。

Study on surface movement and displacement based on velocity of subsidence

In the area where the geology and the method of mining don't change a lot, this paper established the dynamic coordinate and studied the law of the velocity of ground surface movement and obtained the curve of the velocity ,by the integral of the curve of the velocity during the ground surface movement, the formula of ground surface subsidence in the main section can be obtained, and this paper derives a series of the theoretical subsidence calculation formula including subsidence, incline ,curve, horizontal movement and horizontal deformation. The formula is simple and can be used easily in practice.