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近年来,冶金露天矿深孔爆破技术有较大发展。推广了大区微差爆破、留碴挤压爆破、小抵抗线宽孔距爆破、预裂与缓冲爆破技术等,并从孔网参数、布孔方式、装药结构、装填比例、炸药与岩性的匹配、装药量、微差间隔时间、起爆技术等方面的优化问题进行了综合研究,对全面改善爆破质量与经济效益取得了显著效果。但同时也存在一些问题,如现场穿爆
In recent years, the deep-hole blasting technology of the open pit mine has made great progress. Popularize the range of small difference blasting, ballasting blasting, small line spacing blasting, pre-cracking and bursting blasting technology, and from the hole network parameters, the hole pattern, charge structure, filling ratio, explosives and rock Sexual match, charge, difference interval, detonation technology and other aspects of the optimization of a comprehensive study on the overall improvement of blasting quality and economic benefits have achieved remarkable results. But at the same time there are some problems, such as on-site wear burst