摘要
为解决煤矿大断面岩石巷道变形严重、支护难度大的问题,文章通过FLAC^(3D)数值模拟软件,研究巷道围岩变形特征,对比分析了巷道开挖后无支护和施加支护后的围岩塑性区、应力及位移的分布情况,结果表明:设计的支护方案有效控制了巷道围岩变形,提高了巷道的安全性,支护方案满足了围岩稳定性要求,是合理可行的。
In order to solve the problem of serious deformation and difficult support of large section roadway in coal mine,the deformation characteristics of roadway surrounding rock are studied by FLAC 3D numerical simulation software,and the distribution of plastic zone,stress and displacement of surrounding rock after tunnel excavation is compared and analyzed. The results show that the supporting effect of roadway design controls the deformation of roadway surrounding rock and improves the safety of roadway. The supporting scheme meets the requirement of stability of surrounding rock,which is reasonable and feasible.
作者
李文芳
LI Wen-fang(Changzhi Suburban Coal Industry Bureau,Changzhi 046000,China)
出处
《煤》
2018年第6期12-15,共4页
Coal
关键词
岩石巷道
锚喷支护
围岩稳定
数值模拟
rock roadway
bolting and shotcrete support
stability of surrounding rock
numerical simulation
