祁雨沟金矿崩落法采场结构参数优化研究

Optimization of Stope Structure Parameters of Caving Method in Qiyugou Gold Mine

祁雨沟金矿采用无底柱分段崩落法采矿,为进一步降低损失贫化,提高资源利用率,进行了实验室立体放矿试验。共完成了15组多参数立体放矿试验,包括进路口布置方式、不同出矿量、不同采场结构参数、不同放矿步距及以及不同矿种的放矿对比,得到各组合参数相应的回贫指标,根据指标情况确定最佳工艺参数组合。

Qiyugou Gold Mine adopts non-pillar sublevel caving mining.In order to further reduce loss and dilution and improve resource utilization,a laboratory three-dimensional ore drawing test was carried out.A total of 15 sets of multi-parameter three-dimensional ore drawing tests were completed,including the layout of the approach,different ore withdrawals,different stope structure parameters,different ore drawing steps,and ore drawing comparisons of different minerals.The corresponding dilution index of each combination parameter was obtained,and the best combination of process parameters was determined according to the index situation.