深井软岩巷道支护技术研究

Study on Support Technology of Soft Rock Roadway in Deep Mine

正佳煤矿巷道围岩属于软岩巷道,巷道掘进支护后围岩变形量大,且难以控制,基于此,笔者在对巷道破坏影响因素分析的基础上,对矿井的软岩巷道支护方案进行了设计,并对巷道支护效果进行监测分析,结果表明:采用锚网索喷支护+底板采用注浆锚杆联合支护方式进行巷道支护在控制围岩变形和治理软岩巷道底臌等方面具有良好的效果。

The surrounding rock of Zhengjia Coal Mine roadway belongs to soft rock roadway, and the deformation of surrounding rock after roadway excavation and support is large and difficult to control. Based on the analysis of influencing factors of roadway damage, the author designs the supporting scheme of soft rock roadway in mine, and monitors and analyses the supporting effect of roadway. The roadway support with bolt-meshcable-shotcrete support and floor combined with grouting-bolt support has good effect in controlling surrounding rock deformation and controlling floor heave of soft rock roadway.