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炮孔爆破法(包括小直径炮孔的浅孔爆破法和大直径炮孔的深孔爆破法)在我国虽已应用多年,但长期以来限于工业炸药品种少、起爆器材落后、钻机效率低,因此总的水平远落后于国际先进水平。如每米炮孔出岩量只及瑞典的1/2左右,且单耗较高。而常用的孔网设计方法主要沿用苏联早期的设计理论和一些经验,因而经济效益不高,事故也较多。近几年
Blasthole blasting method (including small diameter blasthole blasthole blasthole method and large diameter blasthole deep-hole blasting method) has been used for many years in our country. However, it has been limited to a small number of industrial explosives, undeveloped explosive devices, low drilling efficiency, Therefore, the overall level far behind the international advanced level. For example, the amount of rock per meter borehole is only about 1/2 that of Sweden, and the unit consumption is high. The commonly used hole network design methods mainly follow the Soviet Union’s early design theory and some experience, so economic efficiency is not high, there are more accidents. recent years