动压影响巷道围岩注浆加固技术研究  

Study on Grouting Reinforcement Technology of Roadway Surrounding Rock affected by Dynamic Pressure

作　　者：李昱辉 LI Yu-hui(Shanxi Coal Transport and Marketing Group Shengtai Coal Industry Co., Ltd.,Jincheng 048400,China)

机构地区：[1]山西煤炭运销集团盛泰煤业有限公司,山西晋城048400

出　　处：《煤》2021年第8期14-16,21,共4页Coal

基　　金：国家自然科学基金面上项目(52074189)。

摘　　要：文章通过对永红煤矿3条主要下山进行数值模拟分析,得到了下山巷道围岩破坏受二次采动影响的破坏特征,下山巷道受到工作面回采影响较大,靠近工作面侧围岩影响最为严重。提出了注浆加固巷道方案,通过对破碎围岩体内部注浆,破碎岩体重新胶结成整体,提高了巷道围岩强度。Through the numerical simulation and analysis of the three main downhill roadways in Yonghong Coal Mine,the damage characteristics of the surrounding rock of the downhill roadways under the influence of the second mining are obtained,the influence of surrounding rock near working face is the most serious.The scheme of grouting reinforcement is put forward,and the strength of the surrounding rock is improved by rebonding the broken rock mass into a whole.

关 键 词：动压巷道 围岩稳定性 数值模拟 注浆加固 

分 类 号：TD353[矿业工程—矿井建设]