摘要
采场底部出矿结构一直是矿山施工的难题。针对某铅锌矿浅孔留矿法开采中存在的出矿难题,提出无底柱电耙出矿结构的改造方案,与原传统出矿方式相比,现场应用情况证明,该底部出矿结构不仅有效提高了出矿效率,并且降低平均采矿成本17.5元/t,产生了良好的经济效益。
The bottom structure of ore-drawing was always the challenge in mine construction.According to the ore drawing problems of short-hole shrinkage mining in a leadzinc mine,a reforming scheme of non-pillar ore drawing with scraper was proposed.Field application indicated that,compared with original ore-drawing method,the new scheme not only improved the ore-drawing efficiency obviously,but also reduced the average mining cost by 17.5RMB/ton,having good economic benefits.
引文
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