摘要
针对玉溪煤矿3号煤井底车场系列巷道采用锚网喷支护,掘进出较短时间内变形破坏严重的情况,采用高压注浆+强力锚索综合加固支护方案,分析了浆液在围岩裂隙中的扩散机理和沉积过程,通过数值模拟方法得出注浆+锚杆锚索对破碎围岩的支护效果显著。
The anchor net spray support is adopted for the series of roadways in the bottom of 3# coal mine in Yuxi coal mine,dig out after a short time,severe deformation and failure appeared.Using high pressure grouting combined with strong anchor cable comprehensive reinforcement support scheme,the diffusion mechanism and the deposition process of the slurry in the fissures of the surrounding rock are analyzed,the effect of grouting on the support of broken rock is improved by numerical simulation.
出处
《煤矿现代化》
2018年第3期110-113,共4页
Coal Mine Modernization
关键词
开拓巷道
支护技术
注浆加固
数值模拟
Tunnel
Support Technology
Grouting Reinforcement
Numerical Simulation
