构造应力影响下巷道支护技术研究  

Study on roadway supporting technology under influence of tectonic stress

作　　者：姬东 陶可进 康萌 张奇[2] JI Dong;TAO Kejin;KANG Meng;ZHANG Qi(Xiayukou Coal Mine,SCCIG Hancheng Mining Co.,Ltd.,Weinan 715400,China;China University of Mining and Technology,Xuzhou 221116,China)

机构地区：[1]陕西陕煤韩城矿业有限公司下峪口煤矿,陕西渭南715400 [2]中国矿业大学,江苏徐州221116

出　　处：《煤炭科技》2024年第3期178-182,共5页Coal Science & Technology Magazine

基　　金：国家重点研发计划项目(2017YFC0603001)。

摘　　要：针对下峪口煤矿2-2采区辅助运输巷受高水平构造应力影响难维护的状况,对巷道原支护和不同角度下施加的水平构造应力进行了数值模拟,分析了巷道失稳原因以及变形特征,提出了巷道支护的对策,确定了高强稳定性锚杆索联合支护方式,并对现场锚杆、锚索受力和巷道围岩位移进行了监测分析,实践表明巷道围岩变形得到了有效控制。In view of the fact that the auxiliary transportation roadway in 2-2 mining area of Xiayukou Coal Mine is difficult to maintain due to the influence of high-level tectonic stress,the numerical simulation of the original supporting of the roadway and the horizontal tectonic stress applied at different angles was carried out,the causes of roadway instability and deformation characteristics were analyzed,the countermeasures of roadway supporting were put forward,and the bolt-cable combined supporting mode of high-strength stability was determined,and monitoring and analysis were conducted on the on-site anchor rods,anchor cable forces,and roadway surrounding rock displacement.The practice shows that the deformation of roadway surrounding rock has been effectively controlled.

关 键 词：软岩巷道 构造应力 锚杆索联合支护 

分 类 号：TD353[矿业工程—矿井建设]