摘要
分析了矿井3号煤层孤岛工作面顺槽失稳特征,阐述了中空注浆锚索的支护机理和优势,并以152310孤岛工作面为研究对象,提出采用'中空注浆锚索+锚杆+金属网'的支护方案。
This paper analyses the characteristics of slot instability of isolated island working face in No.3 coal seam,expounds the supporting mechanism and advantages of hollow grouting anchor cable,and takes 152310 isolated island working face as the research object,puts forward the supporting scheme of'hollow grouting anchor cable+anchor bolt+metal mesh'.
作者
郭爱萍
Guo Aiping(Mine Technical Service Branch,Shanxi Jincheng Anthracite Coal Mining Group Shengtai Co.,Ltd.,Jincheng Shanxi 048000)
出处
《山西冶金》
CAS
2019年第3期123-124,共2页
Shanxi Metallurgy
关键词
高预应力
锚网支护
支护方案
效果分析
high prestress
bolt-mesh support
support scheme
effect analysis
