新城金矿阶段空场嗣后充填法开采大直径深孔切槽爆破方法

郭良银,蒋万飞,宋召法,刘晓光,张金超

Large Diameter Long Hole Cutoff Slot Blasting Method for Sublevel Open Stoping with Delayed Filling in Xincheng Gold Mine

Liangyin GUO,Wanfei JIANG,Zhaofa SONG,Xiaoguang LIU,Jinchao ZHANG

图1 阶段空场嗣后充填采矿方法切割立槽三视图

Fig.1 Three views of cutting vertical groove with stage open stoping subsequent filling mining method