有底柱分段崩落法覆岩下放矿的控制与管理

Control and Management of Ore Drawing under the Overlaying Rock in Pillar Sublevel Caving Mining

根据有底柱分段崩落法覆岩下放矿的特点，胡家峪铜矿在多年的出矿管理实践中，探索了少量放矿、依次放矿、简易放矿等放矿方法，使矿山出矿损失贫化指标一直保持了较好的水平。

In accordance with the characteristics of ore drawing under the overlaying rock in pillar sublevel caving mining,Hujiayu Copper Mine has made investigations on several ore drawing methods in its many years'ore drawing management practice,such as unequivalent drawing,successive drawing,simple drawing etc.,which have kept its loss and dilution indexes of ore drawing at good levels.