构造区巷道围岩变形特征及支护参数优化  

Deformation Characteristics of Surrounding Rock and Optimization of Support Parameters in Structural Area Roadway

作　　者：周钰博 张衡 姬中朋 张科 刘江江 ZHOU Yubo;ZHANG Heng;JI Zhongpeng;ZHANG Ke;LIU Jiangjiang(Huadian Coal Industry Group Co.,Ltd.,Beijing 100035,China;Gansu Wansheng Mine Co.,Ltd.,Qingyang 745700,China)

机构地区：[1]华电煤业集团有限公司,北京100035 [2]甘肃万胜矿业有限公司,甘肃庆阳745700

出　　处：《煤炭技术》2024年第12期102-106,共5页Coal Technology

摘　　要：针对背斜构造区巷道围岩控制难题,以甜水堡煤矿南翼1302工作面巷道围岩为研究对象,采用水压致裂法测量了地应力分布规律,分析了构造区巷道变形原因,并对巷道支护方案设计优化。结果表明:在非采空区下作业,巷道围岩应力以水平应力为主,最大水平应力大于垂直应力,属典型构造应力场。通过支护参数优化,巷道围岩锚杆(索)受力稳定,矿压显现不强烈,支护效果良好。In response to the difficulty of controlling the surrounding rock of the roadway in the anticline structure area,the surrounding rock of the 1302 working face roadway in the south wing of Tianshuibao coal mine was taken as the research object.The hydraulic fracturing method was used to measure the distribution law of geostress,analyze the causes of roadway deformation in the structure area,and optimize the design of roadway support scheme.The results show that when mining in non goaf areas,the stress in the surrounding rock of the roadway is mainly horizontal stress,and the maximum horizontal stress is greater than the vertical stress,which belongs to a typical tectonic stress field.By optimizing the support parameters,the anchor rods(cables)in the surrounding rock of the tunnel are subjected to stable stress,and the mining pressure is not strongly manifested,resulting in good support effect.

关 键 词：构造区 巷道 变形特征 支护参数 优化 

分 类 号：TD353[矿业工程—矿井建设] TD325