赞比亚的穆富利拉(Mufulira)矿在新采矿法中应用了大直径的上向和下向炮孔。初步结果表明,费用约减少30％。最近,罗昂(Roan)联合矿山有限公司的穆富利拉矿采用了它独特的大直径炮孔空场采矿法,而这种采矿法迄今还很少应用。到目前为止,该矿使用这种方法已采出一百多万吨矿石,其月产量约8万吨。穆富利拉矿采用这种新采矿法已取得显 The Mufulira mine in Zambia applies large diameter up and down boreholes in the new mining law. Preliminary results show that the cost is reduced by about 30%. Recently, the Mufailila mine at Roan United Mines Limited has adopted its unique large-diameter borehole field mining method, which has so far been seldom used. So far, the mine has recovered more than 1 million tons of ore using this method and has a monthly output of about 80,000 tons. Mufuliila mine has been made clear by adopting this new mining method