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煤层顶板的岩性影响着煤炭的安全开采,马头铺矿区煤层广泛存在较厚软岩顶板,制约矿井的安全生产,天峰井针对该类顶板采用齿形壁式采煤法,并成功尝试,为该类顶板煤层的安全开采提供了范例,创造了很好的经济效益和社会效益。
The rock roof of the coal seam affects the safe mining of coal. There is widespread thick soft rock roof widely in the coal seam of Maitoupu mining area, which has restricted the safe production of the mine. Tiangfeng well adopts the toothed wall mining method for such roof, , Provided a good example for the safe mining of such roof coal seam, and created very good economic and social benefits.