摘要
石炭井焦煤分公司是开采深度大的老矿井,隶属神华宁夏煤业集团公司,煤矿进入三水平的开采,主采4#煤层平均煤厚为5.6m,平均倾角23°。煤层节理发育,顶、底板裂隙发育,煤岩十分破碎,属于"三软"松散厚煤层,本文通过现场摸索和实践,在松散厚煤层取得了很好的成效,对于今后此类工作面的开采,留下了宝贵的经验和一定的借鉴意义。
Shitanjing Coking Coal Company is an old coal mine with large mining depth, iand it is the membership of Shenhua Ningxia Coal Industry Group Company. The coal mine is in the three level of mining. The average thickness of 4# coal seam is 5.6m and the average angle is 23o. The coal seam appears joint development and the wall and roof appears crack development, so coal rock is broken and belongs to the ＂Three Soft＂ loose and thick coal seam. The field exploration and practice in this paper has obtained very good result in loose and thick coal seam, and left a valuable experience and a certain reference for the future working face mining.
出处
《价值工程》
2014年第30期92-93,共2页
Value Engineering
关键词
松散煤层
综放面
片帮漏顶
技术应用
loose coal seam, fully mechanized caving face, coal wall and roof leakage
technology application
