砌碹巷道壁后注浆加固技术研究  

Study on Grouting Reinforcement Technology Behind Wall of Arching

作　　者：梁华杰[1] 王丽 赵忠义[1] 

机构地区：[1]六盘水师范学院,贵州六盘水553004 [2]六盘水市第七中学,贵州六盘水553004

出　　处：《煤炭技术》2017年第8期35-36,共2页Coal Technology

基　　金：贵州省科学技术基金(黔科合LH字[2014]7470号)

摘　　要：针对某矿砌碹巷道壁后围岩松散、巷道变形严重的问题,根据巷道的实际情况,决定采取"注浆+锚杆+锚索"的支护方案。通过计算确定了高水材料注浆压力和注浆管间排距,并模拟分析了不同间排距锚杆锚索对巷道围岩稳定性的影响。得出了锚杆间排距为850 mm×850 mm,锚索间排距为1.8 m时,支护效果最优。通过150 d的变形量观测,巷道变形情况得到了控制。Aiming at the problem that the wall rock of a roadway is loose and deformed seriousty,according to the actual situation,take ＂grouting ＋ anchor ＋ anchor＂ support scheme. The grouting pressure of high water material and the distance between grouting pipes are determined and the influence of different spacing between anchor rod and anchor cable on the stability of roadway surrounding rock is analyzed by numerical simulation. The distance between anchor bars is 850 mm ×850 mm, the row spacing of anchor cables is 1.8 m, the supporting effect is the best. Deformation data for 150 days indicates that the deformation of the roadway is controlled.

关 键 词：砌碹 注浆 变形 控制 

分 类 号：TD265[矿业工程—矿井建设]