某金矿采用削壁充填采矿法降低矿石贫化的工程实践

Engineering Practice of Reducing Ore Dilution by Cutting and Filling Mining Method in a Gold Mine

对于矿体倾向延深大于延长,矿体厚度较薄,而矿石品位较高,矿岩均较坚固,矿体与围岩界线清楚,矿体顶底完整性均较好的急倾斜矿山,随着开采深度的增加,矿体逐渐变窄,采用削壁充填采矿法替代浅孔留矿法采矿,可以有效控制矿石贫化。

For steeply inclined mines where the dip extension of the ore body is greater than the extension,the thickness of the ore body is thinner,the ore grade is higher,the ore rock is stronger,the boundary between the ore body and the surrounding rock is clear,and the integrity of the top and bottom of the ore body is better,the ore body gradually narrows with the increase of the mining depth,and the wall cutting and filling mining method is used to replace the shallow hole shrinkage mining method,which can effectively control the ore dilution.