为掌握李粮店煤矿大采深地应力分布规律，采用空心包体应力解除法在二1煤层底板L7灰岩中施工钻孔，现场测量了4个测点的地应力大小，结果表明，该矿区为高地应力区域，且最大主应力远大于中间主应力和最小主应力，最大主应力接近水平方向；矿井深部开采时围岩内存在较大的剪应力，围岩稳定性较差。另外通过对矿区地应力场与矿区构造关系的分析，进一步表明了矿井主控地应力为构造应力，最大主应力方向基本垂直于褶皱构造轴向和断裂构造的走向。%In order to grasp the distribution regularity of large mining depth stress in Liliangdian Colliery ,ground stress of 4 measuring point has been measured in site by drilling in L7 limestone at二1 coal seam floor ,using hol‐low inclusion stress relaxation method .Results show that the mining area belongs to high ground stress area , the largest stress ,nearly horizontal direction ,is far beyond the middle and the smallest one;larger shear stress exists in surrounding rock while deep mining in mines ,the stability of surrounding rock is poor .And by analy‐zing the relationship between ground stress in mines and mining area structure ,results further show that the main controlling ground stress is structure stress ,the direction of the largest stress is substantially vertical to the direction of the axial of fold structure and fault structure .
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