贺西矿近距离煤层采空区下巷道布置与围岩控制技术研究

Research on Roadway Layout and Surrounding Rock Control Technology under Goaf in Close Range Coal Seams of Hexi Mine

为提升极近距离煤层巷道的稳定性,改善巷道的支护效果,解决极近距离单一煤层开采采场及巷道锚网支护围岩稳定性问题,本文针对贺西矿3316工作面运输顺槽为工程背景,采用FLAC 3D数值模拟软件,探究煤层开挖巷道应力重分布以及塑性区发育状况,并优化巷道支护参数,对地质条件相类似的工作面巷道布置具有参考借鉴意义。

In order to improve the stability of the extremely close coal seam roadway,improve the support effect of the roadway,and solve the stability problems of the surrounding rock of the extremely close single coal seam mining site and the roadway anchor mesh support,this paper focuses on the transportation channel of the 3316 working face of Hexi Mine as the engineering background,uses FLAC 3D numerical simulation software to explore the stress redistribution and plastic zone development of the coal seam excavation roadway,and optimizes the roadway support parameters.The layout of roadway in working faces with similar geological conditions has reference significance.