The characteristic of rock strata movement in mining process of a mine in Chongqing is analyzed by fractal regressive method, and the forecasting of the movement is considered.
用分形插值方法分析重庆某矿开采过程中的岩层移动特征，并探讨其预测方法。
During overlying rock strata being fractured, the surface gas drainage boreholes may be damaged due to ground movement.
在长壁工作面通过的过程中，地面垂直钻孔可能随岩层移动而发生破坏。
The laws on the rock strata and surface movement that have known is basically based on the rock strength, not considering exist and the effect on the subsidence laws of the fissure and the weak face.
已有的岩层与地表移动规律基本上以岩石强度为基础，很少顾及岩体中裂隙弱面的存在，及其对岩层与地表移动规律的影响。
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