Research on Optimization Scheme of Shallow Hole Blasting Parameters in Hongtoushan Copper Zinc Mine
The original blasting parameters of Hongtoushan Copper Zinc Mine are no longer suitable for the current mechanized min-ing scheme.In order to achieve safe,economic,and efficient mining goals,theoretical analysis and on-site industrial experiments were combined to optimize the blasting parameters from aspects such as ore block rate,drilling efficiency,explosive unit consump-tion,and economic benefits.The results show that the triangular arrangement of the blast holes is superior to the rectangular arrange-ment,and the mesh size of the blast holes is determined to be 1.5 m×1.3 m,the ore block rate is reduced,the drilling efficiency is increased by three times,the explosive consumption is reduced by 27%,and the economic benefits are improved.