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本文在力学模型的基础上,利用弹性理论的位移函数法导出了长壁采煤法采空区上方岩层及地表移动的函数表达式,同时给出了岩层及地表最大移动值的计算公式。利用本文的方法,通过对覆岩性质及结构进行分析,可以在缺少、甚至没有现场实测资料的条件下,计算出最大的水平及垂直移动值,弥补了传统的计算方法依赖于现场实测资料的缺陷,有利于新区矿井岩层和地表移动值的预计。文中将理论计算结果与实际观测值进行了对比,证实了本方法的可行性及准确性。
Based on the mechanics model, the displacement function method of elastic theory is used to derive the function expression of rock strata and surface movement over the longwall coal mining method. At the same time, the formulas for calculating the maximal movement of rock and ground are given. Using the method of this article, the maximum horizontal and vertical movement values can be calculated by analyzing the nature and structure of the overburden rock without or even the field measured data, which makes up for the fact that the traditional calculation method depends on the field data Defects, is conducive to the new area mine rock strata and surface movement of the estimated value. In this paper, the theoretical calculation results are compared with the actual observations to confirm the feasibility and accuracy of the method.