摘要
本文以153采区轨道下山巷道围岩较为破碎的问题为背景,分析原有巷道支护存在的问题,提出采用锚杆+锚索+金属网相结合的锚注支护方式。现场应用效果表明:锚注支护方式可以增加围岩强度,顶板以及两帮变形得到有效的控制,能够保证巷道的稳定性。
Based on the background of the fragmentation of surrounding rock in 153 mining area track downhill roadway,this paper analyses the problems existing in the original roadway support,and puts forward the boltgrouting support mode which combines bolt,anchor cable and metal mesh.Field application results show that bolting and grouting support can increase the strength of surrounding rock,effectively control the deformation of roof and two sides,and ensure the stability of roadway.
作者
孙磊磊
Sun Lei-lei(Shanxi Pulongwan Coal Industry Co.,Ltd.,Shanxi Datong 037100)
出处
《山东煤炭科技》
2019年第9期8-10,共3页
Shandong Coal Science and Technology
关键词
锚注
支护
注浆
bolt grouting
support
grouting
