摘要
正令煤矿2110巷(切眼)在掘进至1740 m处揭露一条F10-c2正断层,断层落差为2.3 m,倾角为33°,受构造应力影响,巷道顶板出现局部破碎现象。通过技术研究采用"人工假顶+钢棚+注浆"联合支护措施进行顶板维护,实践证明取得了显著成效。
With a fault drop of 2.3 m and a dip angle of 33°,2110 Lane(cutting eye),Zhengling Colliery exposing a F10-.2 normal fault at 1740 m excavation,the roadway roof was partially broken due to structural stress.Joint support measures of"artificial false roof+steel shed+grouting"were adopted to maintain roof,which achieved significant effects.
作者
薛少峰
Xue Shaofeng(Shanxi Fenxi Zhengling Coal Industry Co.,Ltd.,Xiaoyi,Shanxi 032300)
出处
《江西煤炭科技》
2018年第3期18-20,共3页
Jiangxi Coal Science & Technology
关键词
掘进巷道
顶板变形
支护措施
效果分析
excavation roadway
roof deformation
support measures
effect analysis
