在考虑岩性差异的条件下，推导出了岩层与地表移动的广义下沉公式，最后列举了其应用意义和实例。
With the difference of lithological characters considered, the generalized subsidence formula for strata and surface movement is derived. Some applied fields and an example are given.
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。
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.
地下开采导致岩层变形与地表移动。
Underground Mining lead to rock deformation and ground movement.
不同地形条件下，煤层开采引起的上覆岩层移动与地表沉降规律不同。
The law of ground motion caused by coal excavation is different on different landforms.
不同地形条件下，煤层开采引起的上覆岩层移动与地表沉降规律不同。
The law of ground motion caused by coal excavation is different on different landforms.
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