大红山铜矿285中段连续开采中胶结矿柱经济分析

大红山铜矿285中段铜铁合采区原矿品位较低,采用胶结充填体置换矿柱开采可能亏损,矿山未建立胶结充填体置换矿柱开采的利润测算方法。利用285中段铜铁合采区标准矿块测算胶结矿柱开采的直接成本,结合中段建设费用分摊和销售费用,建立胶结矿柱开采的利润测算方法,最终完成285中段胶结矿柱开采的利润测算,为胶结矿柱开采提供指导依据。

Economic analysis of cemented pillars in continuous mining of middle 285 section of Dahongshan Copper Mine

The grade of the original ore in the copper iron mining area of the middle 285 section of Dahongshan Copper Mine is relatively low,and the mining loss may be caused by the replacement of pillars with cemented backfill,and the profit calculation method for the replacement of pillars with cemented backfill has not been established in the mine.The direct cost of cemented pillar mining is calculated by using the standard ore block in the 285 middle copper iron mining area,and the profit calculation method of cemented pillar mining is established by combining the construction cost sharing and sales cost in the middle section.Finally,the profit calculation of cemented pillar mining in the 285 middle section is completed,which provides guidance for cemented pillar mining.