高瓦斯矿顶板高抽巷优化布置与支护技术研究  

Research on Optimization Arrangement and Support Technology of Special Gas Drainage Tunnel above Roof in High Gas Mine

作　　者：张瑞 赵海卫 ZHANG Rui;ZHAO Haiwei

机构地区：[1]山西煤炭运销集团寿阳亨元煤业有限公司,山西寿阳045400

出　　处：《山西焦煤科技》2018年第2期26-29,共4页Shanxi Coking Coal Science & Technology

摘　　要：针对高瓦斯矿井顶板高抽巷合理层位布置问题,以某矿N1202综放工作面地质与生产条件为基础,通过理论分析与数值模拟相结合的研究方法,分析高抽巷处于不同顶板层位时的围岩控制效果,确定合理的高抽巷布置位置为与煤层垂距30 m,距回风顺槽的水平距离30 m,提出相应的支护技术并进行工业性试验。矿压观测数据表明,支护技术可合理控制顶板离层,避免锚固区内岩体破坏变形。Based on the geological and production conditions of the N1202 fully mechanized top-coal caving face of a mine,the method of combining theoretical analysis with numerical simulation is used to analyze the rational layout of special-drainage tunnels above roof in high gas mines. The control effect of surrounding rock with different stratum locations in rock seams analyzed. The rational vertical distance from the special drainage tunnel to the coal seam is 30 m,and the horizontal distance from the air return roadway to the drainage tunnel is 30 m. The corresponding support technology is proposed and industrial tests are conducted. The observation data of the mine pressure indicate that reasonable layout of the tunnel and the reliable supporting technology can reasonably control the roof rock bedding separation and avoid rock deformation in the anchorage zone.

关 键 词：高高瓦斯矿井 高抽巷 巷道布置 围岩控制 支护 

分 类 号：TD822.2[矿业工程—煤矿开采]