急倾斜煤层巷柱式放顶煤开采回采工艺研究  

Study on Mining Technology of Roadway Pillar Caving in Steep Seam

作　　者：毕建军 贾文厚 Bi Jianjun;Jia Wenhou(Shanxi Ningwu Dayun Huasheng Laoyaogou Coal Industry Co.,Ltd.,Ningwu Shanxi 036700;Shanxi Ningwu Dayun Huasheng Energy Group Co.,Ltd.,Ningwu Shanxi 036700)

机构地区：[1]山西宁武大运华盛老窑沟煤业有限公司,山西宁武036700 [2]山西宁武大运华盛能源集团有限公司,山西宁武036700

出　　处：《山西冶金》2020年第3期40-41,44,共3页Shanxi Metallurgy

摘　　要：针对急倾斜煤层由于煤层倾角大导致采用传统采煤工艺时回采率低、造成煤炭资源浪费的问题,将巷柱式放顶开采工艺应用于急倾斜煤层开采的思路。在巷柱式放顶采煤工艺研究基础上,以49407工作面为例对其回采工艺进行针对性设计,为提升工作面煤层的回采率奠定基础。In view of the problems of low recovery rate and waste of coal resources in steeply inclined coal seam due to the large dip angle of coal seam,the method of applying pillar caving mining technology to steeply inclined coal seam mining is proposed.On the basis of the research on the technology of roadway pillar caving mining,this paper takes 49407 working face as an example to design the mining technology in order to lay a foundation for improving the mining rate of the working face coal seam.

关 键 词：急倾斜 巷柱式 放顶开采 回采率 效率 

分 类 号：TD823[矿业工程—煤矿开采]