【摘要】 针对祁东煤矿的特殊地质和开采条件,采用实际观察与计算相结合的方法,研究了该矿特厚冲积层非主断面观察站岩移参数的求取问题,具体方法为:在对观测数据进行初步处理的基础上,利用“非主断面任意方向观测结果的求参程序”对观测结果进行了求参计算,确定了概率积分法的5个岩移预计参数。利用所求参数对原观测线各测点进行下沉和沿x、y向水平移动进行预计,计算结果与实际观测结果相符,并利用等效面积法,求得了主断面的地表岩移角值,对以后煤柱留设、采动影响范围的确定及非主断面观测站设计具有指导意义。更多还原

【Abstract】 In view of specific geology and mining condition of Qidong Coal Mine, by adopting practical observation and calculation, determination of subsidence parameters based on a observing station along the non-principal subsidence section in the area with extra-thickness alluvium is studied. The method is : on the basis of processing the observation data preliminarily, the subsidence parameters were calculated by using the “program of random direction observation along non-principal section”. Five predicting parameters of subsidence were determined by probability integral method. The subsided value and level movement along x and y directions for original observing lines were predicted using obtained parameters which was coincident with its real observed result. The angle of surface rock stratum movement of principal section was obtained using equivalent area method, which is useful for coal pillar reservation and determination of mining influence area.更多还原