BDMX coal-mining method incluedes wall layout,roof control by ladder prop and bolt,and descending coal-mining.Its application in Xinzhuang mine is introduced.
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释义
阐述了BDMX采煤法,即“壁式布置,刀柱加锚固式管理顶板,下行开采”采煤法在新庄煤矿的应用。
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