大深度矿井围岩破坏分析及支护工艺研究  

Failure Analysis and Support Technology Research on Surrounding Rock in Large-depth Coal Mines

作　　者：李鹏 LI Peng(Taitou Qianwan Coal Industry Co.,Ltd.,Xiangning Coking Coal Group of Shanxi,Xiangning 042100,Shanxi,China)

机构地区：[1]山西乡宁焦煤集团台头前湾煤业有限公司,山西乡宁042100

出　　处：《能源与节能》2021年第9期114-115,222,共3页Energy and Energy Conservation

摘　　要：针对大深度矿井冲击地压大、巷道变形严重的现状,在对井下围岩破坏原因进行分析的基础上,提出了一种新的支护工艺,以“高强度锚索网支护+井下注浆加固”为基础,在简化支护结构的情况下显著提高了井下支护的平稳性。实际应用表明,新的支护方式能将顶板最大位移量降低65.5%以上,将侧帮最大位移量降低64.1%,显著提升了井下巷道支护的稳定性。Aiming at the current situation of high rock burst and serious roadway deformation in large-depth coal mines,based on the analysis of the reasons for the damage of the underground surrounding rock,this paper proposed a new supporting technology based on"high-strength anchor-cable mesh support+underground grouting reinforcement",which significantly im-proved the stability of underground support while simplifying the supporting structure.Practical application showed that the new support method can reduce the maximum displacement of the roof by more than 65.5%,reduce the maximum displacement of the sides by 64.1%,and significantly improve the stability of the underground roadway support.

关 键 词：大深度矿井 围岩破坏 注浆加固 高强度锚杆 

分 类 号：TD353[矿业工程—矿井建设]