无底柱采矿法在康家湾矿中段中厚急倾斜矿体回采中的应用

Application of non pillar mining method in mining medium thick and steep inclined ore body in the middle section of Kangjiawan mine

通过无底柱采矿法对康家湾矿中段中厚急倾斜矿体进行回采,分析总结该施工方法的回采参数和施工工艺,康家湾铅锌矿在近几年里共减少预留顶底高品位残富矿近20W吨。实践证明该种施工方法和工艺流程非常适用康家湾矿的中段中厚急倾斜矿体安全回采,对国内使用充填采矿法的矿山安全回采及减少顶底柱残矿回采亦具有重要的作用和意义。

Based on the mining method without bottom pillar,this paper analyzes and summarizes the mining parameters and construction technology of the middle section of Kangjiawan mine.In recent years,Kangjiawan lead zinc mine has reduced the reserved high-grade residual rich ore of top and bottom by nearly 20W tons.The practice proves that this construction method and technological process are very suitable for the safe mining of medium thick and steep inclined ore body in the middle section of Kangjiawan mine.It is also of great significance for the safe mining of mines using filling mining method in China and the reduction of residual mining of top and bottom pillars.