摘要
针对巷道掘进过地质构造期间,受构造应力影响,巷道围岩易出现严重破碎的现象,以野川煤矿3205辅助运输巷为研究对象,对巷道过地质构造期间顶板原支护主要存在的问题进行分析,提出了“注浆超前加固+JW型锚棚+超前管棚”等联合支护技术,通过实际应用取得了显著应用成效。
During the roadway excavation over the geological structure,the roadway surrounding rock is seriously broken by the influence of tectonic stress.Taking Nochuan coal mine 3205 auxiliary transportation road as an example,we analyzed the main problems of the original roof support during the roadway over geological structure,and proposed the joint support technology such as "grouting over-front reinforcement + JW type anchor shed + over-front pipe shed",which has achieved significant application results through practical application.
作者
赵雷
Zhao Lei(Yechuan Coal Mine,Jinneng Holding Coal Group,Gaoping Shanxi 048400)
出处
《机械管理开发》
2022年第4期98-99,共2页
Mechanical Management and Development
关键词
掘进巷道
构造区
顶板支护技术
tunneling roadway
structured area
roof support technology
application analysis
