莱州市金城金矿采矿方法及回采工艺的改进

The improvement of mining method and stoping technology in Jinchen Gold Mine, Laizhou City

To improve mining method is one of the chief ways to reduce ore dilution. The upward slicing-and-filling by tailing and then,cementing materials is an effective way which is not only applicable technically but also reasonable economically,however,the cement jissociation from cemented pillar is considerable and the intensity of pillars is poor that a part of ores would be lost.Accordingly, the "intervening pillar of bagged tailing piles",the 'metal net partitions" and the "filling of false declining room" are employed.Of the three, the last one is optimal which is an effective technology with less capital cost,quick producing of effect,easy cons tructing and small ore losing.