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分析了特厚煤层分层开采、综放开采、一次采全厚开采3种开采方法对神东矿区特厚煤层的实用性和经济性。结果表明,一次采全高综合机械化开采是较适合神东矿区7m左右特厚煤层的开采方法。补连塔煤矿22303工作面采用了7 m一次采全高综合机械化开采,并取得了良好的经济效益。
This paper analyzes the practicability and economy of three kinds of mining methods, that is, stratified mining, fully mechanized caving mining and once full thickness mining in extra-thick coal seam. The results show that once mining full high mechanized mining is more suitable for the Shendong mining area about 7m thick coal seam mining method. The 22303 working face of BuLianta Coal Mine adopts 7 m full-scale comprehensive mechanized mining at a time and achieved good economic benefits.