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根据峨口铁矿的实际情况，分析了原斜坡箕斗开拓系统的缺陷，提出了溜槽下矿和矿石倒装开拓系统。叙述了溜槽硐室大爆破方案的确定及爆破设计，进行了爆破安全及爆堆计算，观测和分析表明爆破效果良好，经济效益显著。
According to the actual situation of Ekou iron mine, this paper analyzes the defects of the original slopes skip development system, and proposes the down-rolling system of ore and ore under the chute. The definition of large blasting scheme of chute chamber and the design of blasting are described. The safety of blasting and the calculation of blasting are carried out. The observation and analysis show that the blasting effect is good and the economic benefit is remarkable.