近距离煤层采空区下回采巷道布置方案研究

Study on the Arrangement Scheme of Mining Roadway under Goaf of Close Distance Coal Seam

近距离煤层开采过程中,下煤层回采巷道的布置位置影响煤炭资源的采出率,影响巷道支护效果。针对煤峪口矿410盘区近距离煤层开采实践,分析了常见的下煤层回采巷道布置方案。该布置方案将巷道布置在垂直应力降低区域,减小了留设煤柱尺寸,提高了采出率,该方案具有较好的经济效益,具有一定的参考价值。

In the process of mining near coal seam, the location of mining roadway of the lower coal seam affects the recovery rate of coal resources and the supporting effect of roadway. In view of the mining practice of the nearby coal seam in the 410 area of Meiyukou Mine, this paper analyzes the mining roadway layout of the common underground coal seam. The roadway is arranged in the area of vertical stress reduction, which reduces the size of coal pillar and improves the recovery rate. The scheme has good economic benefts and has a certain reference value.