祥升煤业6号煤层切顶卸压沿空留巷技术研究与应用  

Research and Application of Technology of Cutting the Roof and Relieving Pressure and Keeping Roadway Along Goaf in Xiangsheng Coal Industry No.6 Coal Seam

作　　者：王超 Wang Chao(Shanxi Shouyang Luyang Xiangsheng Coal Industry Co.,Ltd.,Shouyang Shanxi 045400,China)

机构地区：[1]山西寿阳潞阳祥升煤业有限公司,山西寿阳045400

出　　处：《山西冶金》2024年第5期206-208,共3页Shanxi Metallurgy

摘　　要：为保障6301工作面沿空留巷围岩的稳定性,根据6号煤层的赋存条件及工作面特征,结合静力破岩原理,具体进行静力破岩切顶卸压方案的设计,设计钻孔长度为6 m,倾角偏向采空区一侧70°,钻孔间距为0.9 m,采用隔孔装药胀裂工艺;基于6301胶带顺槽特征,结合矿井生产经验,对巷道基本支护、巷旁充填体及临时支护方案进行设计,并在留巷期间进行围岩变形情况的监测分析。结果表明:6301胶带顺槽沿空留巷顺利实施,围岩变形合理,满足使用要求。In order to ensure the stability of the surrounding rock along the goaf in the 6301 working face,according to the existence conditions of No.6 coal seam and the characteristics of the working face,combined with the static rock breaking principle,the design of the static rock breaking and roof cutting and pressure relief plan is specifically carried out,and the drilling is designed.The length is 6 m,the inclination angle is 70°to the side of the goaf,the drill spacing is 0.9 m,and the split-hole charge expansion process is adopted.Based on the characteristics of the 6301 belt along the groove,combined with the mine production experience,this paper designs the basic support for the roadway,the filling body next to the roadway,and temporary support schemes,and monitors and analyzes the deformation of the surrounding rock during the retention period.The results showed that 6301 belt was successfully implemented along the goaf along the goaf,and the surrounding rock deformation was reasonable,which met the requirements of use.

关 键 词：静力破岩 切顶卸压 沿空留巷 巷旁充填体 

分 类 号：TD322.5[矿业工程—矿井建设]