锚网喷巷道防喷浆体离层施工工艺设计与应用

Design and Application of the Construction Technology of Anti-shotcrete Separation in Bolt-net Support Roadway

针对锚网喷巷道穿过三软岩层时,在矿压作用下喷浆体很容易产生离层,严重影响安全生产的问题,在石壕煤矿14区回风巷穿三软岩层段巷修作业中采用处、喷、锚、喷、注施工工艺,有效减少巷道离层隐患,降低巷道修护成本。

In view of the problem that the shotcrete body is easy to separate under the action of mine pressure when the bolt mesh shotcreting roadway passes through the three soft rock strata,which seriously affects the safety of production,the construction technology of place,spray,anchor,spray and injection is adopted in the repair of the return air roadway in Shihao Coal Mine Area 14,which effectively reduces the hidden danger of the separation of the roadway and reduces the cost of roadway repair and maintenance.