煤层近距离开采上位残留煤柱对下位与其空间相交的煤巷稳定性造成严重影响,极易引起支护体失效、片帮、冒顶甚至冲击矿压等煤岩动力灾害。以鑫瑞煤矿为背景,采用数值模拟的方法对采空区和煤柱下底板的应力分布状况及其在底板岩层中的传递规律进行了分析,得到了底板岩层不同深度水平截面上应力分布范围,揭示了底板巷道的应力环境。 Upper coal seam residual coal pillar close to the coal seam has a serious impact on the stability of the coal roadway where the lower space intersects with the lower coal seam, which can easily lead to the coal-rock dynamic disasters such as failure of support body, roof collapse and even rock burst. Taking Xinrui coal mine as the background, the stress distribution of goaf and coal floor underplates and its transmission law in floor rock strata are analyzed by numerical simulation method. The stress distribution range at different depths of bottom strata is obtained , Reveals the stress environment of the floor tunnel.