高应力巷道锚杆支护围岩稳定性分析  

Stability Analysis of Surrounding Rock under Bolt Support in High Stress Roadway

作　　者：王军军 陈晨 WANG Junjun;CHEN Chen(Shanxi Coking Coal Huozhou Coal Electricity Linfen Hongda Xueping Coal Industry,Linfen 041000,Shanxi,China)

机构地区：[1]山西焦煤霍州煤电临汾宏大雪坪煤业,山西临汾041000

出　　处：《凿岩机械气动工具》2025年第4期111-113,共3页Rock Drilling Machinery & Pneumatic Tools

摘　　要：文章针对某煤矿高应力巷道面临的围岩变形与支护难题,采用锚杆支护与钻孔卸压联合控制技术,通过优化卸压参数与支护方案,成功缩小应力波动范围,延缓出现应力集中现象,使巷道围岩应力集中区的最大垂直应力降低3.5 MPa,巷道变形量显著减少,顶底板收敛量及两帮移近量分别降低32.5%、41.5%。Based on surrounding rock deformation and support difficulties in high stress roadway of a coal mine,this paper adopts the combined control technology of bolt support and drillhole destressing.By optimizing the destressing parameters and support scheme,the stress fluctuation range is successfully reduced,the stress concentration phenomenon is delayed,the maximum vertical stress in the stress concentration area of roadway surrounding rock is reduced by 3.5 MPa,the roadway deformation is significantly reduced,and the convergence of roof and floor and the convergence of the both sides are reduced by 32.5%and 41.5%respectively.

关 键 词：高应力巷道 钻孔卸压 锚杆支护 

分 类 号：TD353[矿业工程—矿井建设]