塔山山4^#层密集卸压孔切顶卸压小煤柱开采技术  

Mining Technology of Small Coal Pillar with Top Cutting Pressure-relief through Dense Pressure Relief Holes in No.4 Coal Seam of Shanxi Formation in Tashan Coal Mine

作　　者：尉永邦 Yu Yongbang(Yanya Coal Industry Co.,Ltd.,Datong Coal Mine Group,Datong Shanxi 037003,China)

机构地区：[1]大同煤矿集团雁崖煤业有限公司,山西大同037003

出　　处：《同煤科技》2020年第3期4-6,9,共4页Datong Coal Science & Technology

摘　　要：针对塔山三盘区山4^#层8310工作面采用的小煤柱孤岛开采,通过密集孔卸压,切断顶板的应力传递路径,减少采空区侧煤体受到回采动压的影响,保护巷道的完整性,实现小煤柱孤岛工作面安全开采。In view of the 8310 working face of No.4 coal seam in Shanxi formation in the third panel area of Tashan Coal Mine,small coal pillar isolated island mining is adopted.Pressure relief through dense holes,the stress transfer path of the roof is cut off,the influence of mining dynamic pressure on the side coal body of the goaf is reduced,the integrity of the roadway is protected,and the safe mining of small coal pillar isolated island working face is realized.

关 键 词：小煤柱 孤岛开采 密集卸压孔 

分 类 号：TD353[矿业工程—矿井建设]