2) big diameter and deep vertical well
大直径深立井
1.
Construction Company of Jixi Mining Group adopting short digging and building combined work can fully make the ability of mechanization collecation equipment,extend new technology of umbellar borer holing and deep hole blasting and sinking by double center rotating grab,continuously breach 100 m in 2005 and accumulate experience in rapid construction in big diameter and deep vertical well.
鸡西建设工程公司在望峰岗矿主井井筒施工中,采用短段掘砌混合作业,充分发挥机械化配套设备能力,推广应用伞钻凿眼深孔爆破,双中心回转抓岩机装岩等凿井新技术,2005年连续7个月月成井破百米,为大直径深立井井筒快速施工积累了经验。
3) Large-diameter Shaft
大井径立井
5) large diameter drilling
大直径钻井
1.
This paper describes the application and research on the large diameter drilling and raise at home and abroad.
介绍了大直径钻井、反井钻井在国内外的应用和发展概况。
6) large hole
大直径井眼
补充资料：立井
见矿山井巷。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条