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METHOD FOR DETERMINATION OF SAFE DEPTH OF EXTRACTION OF COAL OF OUTBURST-DANGEROUS COAL SEAM

机译:急危煤层采煤安全深度的测定方法。

摘要

Method for determination of safe depth of extraction of coal of outburst-dangerous coal seam includes interval drilling of control blast holes in direction of penetration of working, measurement of initial rate of gas liberation there and simultaneous determination of energy of acoustic signals at drilling.
机译:确定突出危险煤层煤安全开采深度的方法包括:沿工作贯入方向间隔钻探控制爆破孔,测量瓦斯释放的初始速率以及同时确定钻探时的声信号能量。

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