黑宝山露天煤矿一采区东坑采用剥离物外排的开采方式,使剥离运输成本较高。文中提出了开拓系统改造,将下部剥离物料排入内排土场,从而缩短了剥离运输的平均运距,降低了生产成本。 Hebaoshan open pit mining area Dongkeng stripping the use of excretion of mining, so that stripping transport costs higher. In this paper, a system reform is introduced to release the lower stripped material into the dump site, thereby shortening the average shipping distance of stripped transport and reducing the production cost.