顶板淋水大断面石门巷道破坏特征及支护技术研究  

Study on failure characteristics and support technology of large section rock cross-cut roadway with roof watering

作　　者：刘安民 Liu Anmin(Huozhou Coal and Electricity Group Jinneng Coal Industry Co.,Ltd.,Xinzhou 035100,China)

机构地区：[1]霍州煤电集团金能煤业有限公司,山西忻州035100

出　　处：《煤炭与化工》2024年第12期28-31,共4页Coal and Chemical Industry

摘　　要：为保障金能煤业+980 m水平辅助运输石门巷道的长期安全稳定,采用现场调研、实测、理论分析等方法,开展巷道破坏特征、机理及合理支护方法的研究。研究表明,在原有架棚支护方法的条件下,围岩松动圈发育范围达到2.4 m,巷道变形破坏严重,采用锚网索喷联合支护技术更为合理。设计详细的顶板含水层疏排技术措施及锚网索喷支护方案,实践表明,锚杆、锚索起到良好的主动支护作用,围岩变形破坏得到有效控制。In order to ensure the long-term safety and stability of+980 m level auxiliary transportation rock cross-cut roadway in Jinneng Coal Industry,the failure characteristics,mechanism and reasonable support method of roadway were studied by means of field investigation,measurement and theoretical analysis.The research showed that under the condition of the original shed support method,the development range of the surrounding rock loose circle reached 2.4 m,and the deformation and failure of the roadway was serious.It was more reasonable to adopt the combined support technology of anchor net and cable spray.The detailed roof aquifer drainage technical measures and bolt-mesh-cable-shotcrete support scheme were designed.The practice showed that the bolt and anchor cable played a good active support role,and the deformation and failure of surrounding rock were effectively controlled.

关 键 词：巷道支护 松动圈 石门巷道 顶板淋水 底鼓 

分 类 号：TD35[矿业工程—矿井建设]