矿石回采率大幅提高，由原来的65%提升到79%。
如果一些矿石从运输车中掉出来，一种特质的铲车会把它们送回采掘现场。
If something falls out of the rock handler, a special bulldozer take it back to the excavating site.
针对以上问题，对竹峪金矿区采矿技术进行了改进，采用小木架支护法，在冒落采区中开辟回采通道，回采矿石。
In view of above problems, the mining technology has been improved in Zhuyu mine areas by supporting with small wooden stand and opening stoping passage in the caving mining area.
该方法提高了矿石的回采率，降低了矿石的贫化率，为矿山寻找出一条合理的开采方法。
This method can improve the ore extraction rate and reduce the ore dilution rate and has been found to be a rational mining method for the mine.
无底柱分段崩落法贫化大是由现行放矿方式造成的，改用不贫化放矿后可使矿石贫化率在回采率不降低情况下大幅度下降到8％以下。
High dilution for sublevel caving is caused by existing drawing mode. Using thd undilutiondrawing can greatly decrease the ore dilution below 8% without decreasing recovery.
无底柱分段崩落法贫化大是由现行放矿方式造成的，改用不贫化放矿后可使矿石贫化率在回采率不降低情况下大幅度下降到8％以下。
High dilution for sublevel caving is caused by existing drawing mode. Using thd undilutiondrawing can greatly decrease the ore dilution below 8% without decreasing recovery.
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