摘要
2#辅助运输石门底鼓严重影响矿井建设与生产运输。通过现场调研、理论分析与室内试验,发现巷道埋深大,水平构造应力高,致使无支护的底板围岩产生挤压变形。设计了反底拱+底角锚杆耦合技术的治理方案。
The floor heave of No.2 subsidirary transportation roadway seriously affected building of mines and transporting of production.Based on the on-site survey,theoretical analysis and laboratory test,find roadway bury deeply,high horizontal tectonic stress,producing extrusion deformation of nonsupport country rock in floor.Designing inverted arch and base angle bolt treatment scheme.
出处
《煤炭技术》
CAS
北大核心
2014年第8期95-98,共4页
Coal Technology
关键词
深埋巷道
软岩
高地应力
底鼓
控制技术
deep roadway
soft-rock
high ground stress
floor heave
control technology
