聚能爆破在某露天矿的应用与研究

Study and application of accumulative blasting in open-pit mine

通过对聚能药包聚能流的测试和分析,论述了聚能药包破碎岩石大块的原理、技术参数、选择依据和计算方法,总结了现场试验情况和施工方法,并根据实际冲击波超压的测试,确定了聚能爆破应用于采场二次破碎的安全距离圈定方法。

Breaking large-sized rock by cumulative charge, its principle, technique parameters, basis of selection, calculation method and construction etc. are introduced by test and analysis of cumulative energy flow. Super pressure test is made according to ac- tual shock wave, in results, delimitation method of safe distance is determined while cumulative blasting is used for the second rock breaking in open-pit mining.