摘要
探讨了老窑沟煤矿的采煤方法及回采工艺,得出结论:该矿5号煤层采用走向长壁综合机械化放顶煤一次采全高采煤方法,全部垮落法管理顶板。501采区的工作面、回采工作面采用后退式开采,放煤方式采用单轮间隔放煤方式。5号煤层年推进度475 m,采区回采率75%。
Mining methods and extraction technology in Laoyaogou mine are discussed in the paper. It draws conclusions： for No.5 coal seam, longwall fully-mechanized top coal mining with full-height-mining could be used, with full caving method to control roof. For No.501 mining face, retreating mining is selected combined with single wheel interval caving method. Therefore, in No.5 coal seam, annual advancement reaches 475m with recovery ratio of 75 %.
出处
《山西煤炭》
2014年第11期15-16,共2页
Shanxi Coal
关键词
采煤方法
回采工艺
回采率
mining methods
extraction technology
recovery ratio
