郭家河煤矿综放开采地表岩移参数分析

Parameters Analysis of Surface Rock Movement in Guojiahe Mine Fully Mechanized Caving Mining

针对郭家河煤矿大埋深、大采高、地表地形地貌复杂及观测时间长的特点,通过建立地表观测站,结合地表观测成果,计算给出了郭家河煤矿综放开采地表移动变形的相关参数和地表移动时间,同时结合坡体稳定性分析和计算机反演模拟,对求解的概率积分参数进行修正。研究表明:该矿区地表为黄土沟壑区,其坡体的稳定性及滑移附加量对地表岩移参数的求取有较大的影响,尤其是在计算地表下沉系数、地表下沉值及水平移动量时需考虑坡体稳定性和滑移附加量的影响。

According to the characteristics of large buried depth, high mining height, complex surface topography and long observation time of Guojiahe Coal Mine, by means of establishing the surface observation station and combined with the surface observation results, it is calculated and given that the relevant parameters of surface movement deformation and surface movement time in fully mechanized caving mining of Guojiahe Coal Mine. Combined with the slope stability analysis and computer inversion simulation, the probability integral parameters are corrected. The results show that the surface area of Guojiahe Coal Mine is loess gully region, the stability of the slope and the additional slip have a great influence on the parameters of the surface rock movement, the effects of slope stability and additional slip should be considered, especially in calculating the surface subsidence coefficient, the surface subsidence and horizontal movement.