【摘要】 针对河台金矿浅孔留矿采矿法矿柱回采存在的问题进行分析研究 ,通过用钢筋混凝土置换底柱 ,结合采用少量的上向分层干式充填法置换间柱等办法来缩小采空区的规模 ,立足于对现有浅孔留矿采矿法进行改造 ,从而降低矿柱回采贫化率、损失率。上述措施已付诸实施 ,并取得了明显效果更多还原

【Abstract】 The problems existed in ore pillar stoping by shrinkage method in Helai Gold Mine were studied and ana lysed.Through replacing ore pillar with reinforced concrete and using upward bedding dry filling method to displace part spacer pillar,the dimension of mined out area reduced,so that the ore dilution and loss rate of ore pillar stoping lowered significantly.更多还原