顺槽巷道顶板含软夹层时的支护效果分析

The Support Effect Analysis of the Soft Interlayer at the Top of the Chute Roadway Roof

凤凰山煤矿XV2207巷顶板含软夹层,根据夹层赋存位置的不同,采取不同的支护参数。经矿压观测及回采的验证,XV2207巷只是出现很小的下沉和离层,未对生产造成任何影响。说明支护方案可靠,充分发挥了锚杆(索)悬吊作用,有效保持了巷道的整体稳定性。

The roof of the XV2207 roadway in Fenghuangshan Coal Mine contains soft interlayer. According to the different location of the interlayer, different support parameters are taken. Through the verifcation of ore pressure observation and recovery, the XV2207 roadway is only a small sinking and separated layer, which does not have any effect on the production. It shows that the support scheme is reliable, fully exerts the suspension effect of bolt （cable）, and effectively maintains the overall stability of the roadway.