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中深孔接杆凿岩扩孔技术在新桥矿的应用殷埠桥（新桥硫铁矿）井下采矿，落矿工艺是重要一环。新桥硫铁矿结合本矿井下生产的实际，吸取国内外先进的技术──大直径炮孔落矿。应用接杆凿岩，扩孔技术，使落矿工艺有了新的改进。１生产条件新桥硫铁矿矿床是一个以疏为主含铜...
Application of deep hole post drilling and reaming technology in Xinqiao Mine The Yinbu Bridge (Xinqiao Pyrite Mine) is an important part of underground mining and ore falling technology. Xinqiao Pyrite combined with the actual production of the mine, drawing on advanced technology at home and abroad ─ ─ large-diameter hole blasting mine. Application of post rock drilling, reaming technology, so that the ore has been a new improvement process. 1 production conditions Xinqiao pyrite deposit is a predominantly copper ...