The forms of devastation mainly include earthquake surface ruptures, caused by structure factor, fractures, liquefaction, seismic subsidence, collapse, caused by seismic shaking.

震区冻土变形破坏主要包括地震构造成因的地震破裂带和由地震振动引起的裂缝、液化、震陷和崩塌等。

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And the results show that with the increase of mining height, the surface subsidence and horizontal movement value increase, while the subsidence factor decreases in nonlinear.

结果表明：在采深和采出率等条件相同的情况下，地表下沉值和水平移动值均随采厚的增加而增大，而下沉系数随采厚的增加以非线性关系逐渐减少。

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