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Practice of Blasting Block Control for Open Pit Benchs in Skarn Mine
Author(s): 
Pages: 4-7
Year: Issue:  1
Journal: Gansu Metallurgy

Keyword:  矽卡岩成矿台阶爆破块度控制岩石动力学;
Abstract: 新疆索尔库都克铜矿是典型的矽卡岩成矿极坚硬矿山,一直饱受台阶爆破块度较大问题的困扰.在正确认识岩石爆破破碎的物理性质和露天台阶爆破的破碎机理的基础上,分析了炸药爆速对破碎块度的影响及单位体积炸药消耗量与破碎块度的关系,采取了引进高爆速炸药、增大炮孔孔径、小抵抗线宽孔距爆破技术、电子雷管、深孔排间辅助短炮孔技术、孔口高能辅助药包技术等一系列针对性技术措施,取得了较好的露天台阶爆破破碎块度控制效果.
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