摘要
针对东曲煤矿2号煤层工作面顺槽围岩具体的地质情况,确定了在不同情况下的巷道支护形式和参数,对于2号煤层工作面顺槽围岩控制技术进行了分析与研究,在工作面顺槽设置了两个测站,两个测站的间距为110m,选取有代表性的围岩,用十字布点法进行测量,分别对工作面两帮位移量和巷道顶板位移量进行监测。监测结果为顶底板的位移量控制在85mm左右,两帮位移量控制在110mm左右。表明此支护设计方案对控制工作面顺槽巷道围岩的变形有效,对于相同条件下的巷道围岩控制起到了参考作用。
According to the specific geological conditions of the surrounding rock of the No. 2 coal seam face in Dongqu Coal Mine,the supporting forms and parameters This paper analyzed and studied the control technology of roadway under different conditions were determined. of the surrounding rock of the No. 2 coal seam working face,and two stations were installed at the side of the roadway,the distance of the two stations is 110 m,the repre- sentative surrounding rock was selected and measured by cross point method,the displacement of the two sides of the working face and the displacement of the roof of the roadway were monitored respectively.The monitoring re- suits showed that the displacement of the roof and floor was controlled at about 85 mm,the displacement of the two sides of roadway was controlled at about 110 mm.It shows that the design of the supporting scheme is effec- tive for controlling the deformation of the surrounding rock of the tunnel in the working face,for the same condi- tions, the roadway surrounding rock control played a reference role.
出处
《煤炭科技》
2017年第3期63-65,共3页
Coal Science & Technology Magazine
关键词
工作面顺槽
支护形式
监测
围岩控制
roadway of working face
supporting form
monitoring
surrounding rock control
