山东煤炭科技2024，Vol.42Issue(2)：39-43,5.DOI:10.3969/j.issn.1005-2801.2024.02.009
万福煤矿泵房软弱围岩破坏机理及控制对策
Failure Mechanism and Control Countermeasures of Weak Surrounding Rock in Wanfu Coal Mine Pump House
谷艳涛 1马晓宁 1马明月1
作者信息
- 1. 兖煤万福能源有限公司,山东 菏泽 274000
- 折叠
摘要
Abstract
In order to solve the difficult problem of supporting large cross section cavern in deep soft rock,this article takes the repair of the-820 m horizontal main drainage pump house cavern in Wanfu Coal Mine as the background.The failure characteristics of surrounding rock,the displacement amount of the two sides,and the deformation characteristics of the masonry body are analyzed respectively by means of drilling peeping instrument,leveling instrument,and layout strain transducer.The failure mechanism of the large buried depth and large cross section cavern is clarified.At the same time,aiming at the failure characteristics of the cavern,a reinforcement measure combining grouting to fill rock cracks and rebuild masonry passive support is proposed.The surrounding rock of the cavern is filled with weak areas through grouting,then exert masonry and grouting anchor cable support.Currently,the surrounding rock of the pump room is in a stable state for a long time without significant deformation occurence,and the deformation of the cavern surrounding rock is significantly controlled.关键词
软岩支护/钻孔窥视/注浆/现场试验Key words
soft rock support/drilling peeping/grouting/field test分类
矿业与冶金引用本文复制引用
谷艳涛,马晓宁,马明月..万福煤矿泵房软弱围岩破坏机理及控制对策[J].山东煤炭科技,2024,42(2):39-43,5.
