论文部分内容阅读
西伯利亚矿石生产联合公司在大规模崩落铁矿石时广泛采用平行密集深孔装药,这些在切割槽和受压介质中密集装药同时爆破,可使大块率降到1/3至1/4,使大爆破时空气冲击波阵面压力减少到1/3,大大提高了出矿效率。随着采掘工作面下降到500米和更深,切
Siberian Ore Production Co extensive use of parallel dense deep-hole charges for large-scale crashes of iron ore, which are densely charged in cutting flutes and pressurized media while blasting, can reduce bulk rates to 1/3 to 1 / 4, so that when the big blast air blast pressure reduced to 1/3, greatly increased the efficiency of the mine. With the mining face down to 500 meters and deeper, cut