三鑫金铜矿临时保安矿柱回采方法选择与应用

为高效回采三鑫金铜矿重新圈定临时保安矿柱释放的矿体,在充分考虑采场参数、回采顺序及安全稳定的情况下,初步选择了盘区分段回采阶段充填采矿法、盘区分段回采分段充填采矿法和盘区机械化上向分层充填采矿法3种采矿方法.在综合比较3种采矿方法的生产能力、安全性和经济等因素后,确定盘区分段回采阶段充填采矿法为最优方案.该方案具有工艺...

Selection and application of the methods for temporary security pillars extraction in Sanxin Gold Copper Mine

In order to efficiently extract the ore body released by the temporary security pillars re-delineated by Copper Sanxin Gold,taking into account the stope parameters,mining sequence,safety and stability,three mining methods are preliminarily selected:panel sublevel mining staged filling mining method,panel sublevel mining sublevel filling mining method and panel mechanized upward slicing filling mining method.After a comprehensive comparison of the production capacity,safety and economic factors of the three technical schemes,it is determined that the panel sublevel mining staged filling method is the optimal scheme that has the advantages of mature technology,low cost while safety can be guaranteed.The industrial test shows that the panel sublevel mining staged filling method can recover and release the ores from temporary security pillars with safety,high efficiency and low dilution and loss,and the stope production capacity can reach 200-300 t/d.