摘要
5111巷位于3号煤层采空区煤柱下方,围岩变形严重。为了确保巷道围岩稳定,降低支护成本,在对巷道原支护参数分析基础上,采用数值模拟分析、现场工业试验技术方法,对巷道支护参数进行优化设计。优化后的巷道支护参数不仅可以确保5111巷围岩稳定,而且简化巷道支护流程,降低支护耗时。
The 5111 roadway is located below the coal pillar in the goaf of coal seam No.3,and the deformation of surrounding rock is serious.In order to ensure the stability of roadway surrounding rock and reduce the support cost,the optimal design of roadway support parameters is carried out by using numerical simulation analysis and field industrial test method on the basis of analyzing the original support parameters of roadway.The optimized roadway support parameters can not only ensure the stability of surrounding rock in the 5111 roadway,but also simplify the roadway support process and reduce the support time.
作者
董建
Dong Jian(Tiefeng Coal Industry Co.,Ltd.,Datong Coal Mine Group,Shanxi Datong 037000)
出处
《山东煤炭科技》
2020年第11期40-42,共3页
Shandong Coal Science and Technology
关键词
采空区
煤柱
巷道
支护
goaf
coal pillar
roadway
support
