谦比希铜矿薄矿体采场结构参数优化及应用  

Stope structure parameter optimization of the thin ore body in Chambishi Copper Mine and its application

作　　者：万孝衡 林卫星 欧任泽 周礼 Wan Xiaoheng;Lin Weixing;Ou Renze;Zhou Li(Changsha Institute of Mining Research Co.,Ltd.;National Engineering Research Center for Metal Mining)

机构地区：[1]长沙矿山研究院有限责任公司 [2]国家金属采矿工程技术研究中心

出　　处：《黄金》2021年第2期48-51,共4页Gold

摘　　要：谦比希铜矿N1矿体产状较平缓,厚度薄,采用房柱采矿法回采。为安全经济回采该矿体,对采场结构参数进行了优化,得出最优的采场结构参数为:一步骤采场宽度8 m,矿柱宽度和长度均为5.0 m,矿柱间距3 m。现场试验表明:该采场结构参数下试验采场回采安全系数为1.15,回采过程中矿体安全稳定,未发生采空区垮塌等安全生产事故,矿石贫化率为10.50%,矿石回采率为74.80%,提高了矿山的经济效益。The N1 ore body of Chambishi Copper Mine is relatively smooth and thin and is mined with room and pillar mining method.In order to recover the ore body in a safe and economic way,the stope structure parameters are optimized.The optimum stope structure parameters are as follows:the width of the first step stope is 8 m,the width and length of the pillars are both 5.0 m,and the spacing between pillars is 3 m.Field industrial tests show the safety factor of the test stope is 1.15 under these stope structure parameters,the ore body is safe and stable in the mining process,no safe production accidents take place such as goaf collapse,ore dilution rate is 10.50%,ore stoping rate is 74.80%,and economic profits of the mine is improved.

关 键 词：薄矿体 房柱采矿法 采场结构参数 安全经济 矿石回采率 

分 类 号：TD853.32[矿业工程—金属矿开采]