煤矿井下巷道围岩变形原因分析及控制方案研究  

Cause Analysis and Control Scheme Research on Surrounding Rock Deformation of Underground Roadway in Coal Mine

作　　者：白香杰 Bai Xiangjie(Shanxi Coking Coal Fenxi Mining Industry Jinxinda Coal Industry,Linfen Shanxi 041000)

机构地区：[1]山西焦煤汾西矿业金辛达煤业,山西临汾041000

出　　处：《山西冶金》2022年第3期171-172,367,共3页Shanxi Metallurgy

摘　　要：针对大深度巷道掘进作业过程中所面临的矿压波动和应力集中问题突出,提出了一种新的巷道围岩变形控制方案,综合运用高预应力高强锚杆支护、关键部位强力支护、全断面协同支护,实现了对巷道围岩稳定性的有效控制,根据实际应用表明,新的支护方案能够将巷道两帮变形量降低76.9%,将巷道顶底板变形量降低75.1%。In view of the prominent problems of rock pressure fluctuation and stress concentration in the process of large depth roadway excavation, a new roadway surrounding rock deformation control scheme is proposed. The comprehensive use of high prestress and high-strength bolt support, strong support at key parts and full section cooperative support realizes the effective control of roadway surrounding rock stability. According to the practical application, the new support scheme can reduce the deformation of two sides of the roadway by 76.9%, reduce the deformation of roadway roof and floor by 75.1%.

关 键 词：围岩变形 强力支护 断面协同支护 高强度锚杆支护 

分 类 号：TD322[矿业工程—矿井建设]