平底结构矿岩分运浅孔留矿法在不规则厚大矿体中的应用

The Application of Shallow-hole Shrinkage Mining with Flat-bottom Structure for Separate Handling of Ore and Waste Rock in Irregular and Massive Orebody

祁雨沟金矿区角砾岩型金矿床的矿体形态复杂 ,赋存状态极难勘定 ,为此对这种矿体的开采试验应用了平底结构矿岩分运的浅孔留矿法。试验表明 。

The orebody shape of the breccia-type gold deposit in Qiyugou Gold Mining District is complicated and the status of ore occurrence is very hard to be determined by exploration.Therefore,a shallow-hole shrinkage mining method with flatbottom structure for the separate handling of ore and waste rock was used for the trial mining of this orebody.The test results showed that this mining method is fairly suitable for the exploitation of this sort of orebody.