摘要
定向水力致裂技术能够通过高压水流切断煤岩体的原有结构联系,起到定向转移部分上覆岩层压力,主动改善煤岩体中的应力集中状况的作用。本文利用这一技术对临空巷道帮、顶板下沉等变形进行了实践,通过数据显示,该技术有效控制了巷道变形,保障了工作面顺利回采。
The directional hydraulic fracturing technology can cut off the original structural connection of coal and rock mass through high-pressure water flow,which plays the role of directional transfer part of overburden pressure,and actively improves the stress concentration in coal and rock mass.In this paper,this technology is used to practice the deformation of the roadway side and roof subsidence.The data shows that this technology effectively controls the deformation of the roadway and ensures the smooth mining of the working face.
作者
董建
Dong Jian(Datong Coal Mine Industry Tiefeng Coal Industry Co.,Ltd.,Shuozhou Shanxi 037000)
出处
《山西冶金》
CAS
2020年第3期59-61,共3页
Shanxi Metallurgy
关键词
水力致裂
围岩控制
实践
hydraulic fracturing
surrounding rock control
practice
