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地表采动裂缝是地下煤层开采引起地表采动损害的一种显现形式。限于研究手段和方法,目前对地表采动裂缝宽度的定量计算鲜有研究。基于实测资料,根据几何学原理推导了地表采动裂缝宽度的计算公式。与实测对比验证表明,该式计算结果与实测基本吻合。为煤矿区土地复垦工程量计算和土地损害程度提供了判断方法。
Surface mining cracks are a manifestation of surface mining damage caused by underground coal seam mining. Limited to the research methods and methods, there are few studies on the quantitative calculation of the width of the surface mining cracks. Based on the measured data, the calculation formula of the mining face crack width is derived from the principle of geometry. Contrast with the experimental results show that the calculated results are basically consistent with the measured. It provides a method of judging the amount of land reclamation project and the degree of land damage in the coal mining area.