岩巷段巷道三岔口联合支护技术研究
Research on Combined Support Technology for Roadway Three Forks in Rock Roadway Section
张磊 1李方见1
作者信息
- 1. 河南能源集团永煤集团陈四楼煤矿,河南 永城 476600
- 折叠
摘要
针对陈四楼煤矿 2902 下顺槽岩巷段三岔口巷道受力复杂、失稳等问题,通过对巷道三岔口三角区域受力分析,确定"锚杆+锚索+金属网+喷浆支护"的联合支护方式,巷道围岩整体稳定性较大提高,顶板下沉量控制在0.07 m以下,两帮收敛量控制在0.06 m以下.
Abstract
In view of the complex stress and instability of the three fork roadway in the 2902 lower crossheading rock roadway section of Chensilou Coal Mine,a combined support way of"anchor rod+anchor cable+metal mesh+spray grouting support"is determined through force analysis of the triangular area of roadway three forks.The overall stability of the roadway surrounding rock is greatly improved,the subsidence amount of the roof is controlled below 0.07 m,and the convergence amount of the two sides is controlled below 0.06 m.
关键词
三岔/岩巷/联合支护Key words
trifurcation/rock roadway/combined support引用本文复制引用
出版年
2024
国家科技期刊平台
NSTL
万方数据