Abstract:

Abstract： This article introduces the basic situation of winter blasting in Yimin Open-pit Mine and the general method of blasting effect evaluation. The author explains the general relation between the drilling efficiency and the rock properties by the method of statistical analysis, and gives the coordination of blasting and excavation. Combined with the production experience and theoretical research, the article lists several methods of reducing the cost of blasting.

摘要：

摘　要：介绍了伊敏露天矿冬季爆破的基本情况和爆破效果评价的一般方法。通过统计分析的方法解释了钻孔效率和岩层性质的一般关系，给出了爆破和采掘之间的配合情况。结合生产经验和理论研究列出了几点增加爆破效果降低爆破成本的方法。