东欢坨矿近距离煤层上行开采覆岩变形
Journal of Hebei United university natural sclence edition(2015)
Abstract
对开滦(集团)东欢坨矿北2采区的7煤层和8煤层的上行开采进行分析,先采8煤层对上面的7煤层及上覆岩层造成一定的影响,对采动围岩力学参数进行选取,并对煤层及其上覆岩层采用FLAC3D进行数值模拟及分析,给出近距离煤层上行开采建议及措施,从而对该矿的近距离煤层上行开采进行指导,为同类上行开采提供了有益的指导和借鉴.
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