In accordance with characteristics of goaf in Sandaozhuang mine area of Luanchuan Molybdenum Industry Company,Luoyang,the surface blasthole method is put forward to treat goaf.
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释义
针对洛阳栾川钼业公司三道庄矿区采空区特点,提出了露天深孔爆破崩矿处理采空区的新方法;
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