巷道支护设计及钻孔卸压技术实践

Roadway Support Design and Practice of Borehole Pressure Relief Technology

针对2207轨道顺槽煤与泥岩复合顶板巷道的围岩控制问题,利用现场调研、矿压观测、文献检索等研究方法,分析巷道围岩变形及破坏机理及支护原理,并提出巷道支护方案及超前钻孔卸压方案,使围岩控制达到了预期目标,实现了安全生产。

Aiming at the surrounding rock control problem of the combined roof roadway with coal and mudstone along track 2207,the deformation and failure mechanism and supporting principle of the surrounding rock of the roadway are analyzed by means of on-site investigation,rock pressure observation and literature search,the supporting scheme and pre-drilling pressure relief scheme are put forward,so that the surrounding rock control achieves the expected goal and the safety production is achieved.