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为了有效保护铜坑矿地表工业设施,解决崩落法开采面临的矿石贫化率高等问题,开展了铜坑矿全尾砂结构流体胶结充填实验室试验研究。实验室试验结果表明,铜坑矿全尾砂的基本性质满足高浓度结构流自流输送的要求,胶结充填体28d强度可达2.5 MPa以上,但水泥耗量偏大,建议寻找性价比更优的胶结剂。
In order to effectively protect surface industrial facilities in Tongkeng mine and solve the problem of high ore dilution rate in caving mining, laboratory tests on cementation and filling of tailings in Tongkeng Mine are carried out. Laboratory tests show that the basic properties of the tailings in the copper pit mine satisfy the requirement of gravity flow of high-concentration structure flow. The strength of the cement filling body 28d can reach over 2.5 MPa, but the cement consumption is too large, so it is suggested to find the cement with better cost performance Agent.