四川皇嘉农业集团矿业有限公司

Experimental study of cost optimization for open-pit bench blasting based on orthogonal experiment method

四川皇嘉农业集团矿业有限公司是一家以现代农业开发为主体,集矿产品开采、工业硫酸、有机磷肥生产,无公害农产品种植（茶叶、水果、药材）和酒店经营为一体的民营企业。公司属下的雁门硫铁矿是一座储量为C1＋C2级859.9万t的中型化工矿山企业,矿山位于四川江油市六合乡杨家院村,距宝成铁路斑竹圆车站16km,与川陕高速公路相接,距成都232km,交通十分便利,

open-pit blasting operation, the blasting effect directly affects the economic costs （blasting material costs, drilling cost and secondary processing costs）and is determined by blasting pa- rameters such as spacing, resistance line, over-drilling and initia ting position, et al. In one roadbed engineering blasting, the influ- ence of above factors is analyzed by orthogonal optimization tests and the effect curve of the various factors on cost indexes is also mapped out. According to the study results, primary and seconda- ry factors affecting blasting effect and the optimal solution are ob- tained.