摘要
紫金山金铜矿矿产勘查中使用空气反循环连续取样钻进工艺,解决破碎地层、缺水地区钻探取样难、施工成本高的问题。介绍了机具的配套、钻进工艺流程及施工注意事项,特别是针对紫金山金铜矿区破碎、漏失地层,为提高钻进效率,采用正反循环2种潜孔锤钻进,获得了高的采样率,提高了施工效率,大幅度降低了施工成本。
In the mineral exploration of Zijinshan gold-copper mine, air reverse circulation continuous sampling drilling technology was used to solve the problems of the broken formation drilling, the difficult sampling in water-deficient area arid the high construction cost. This thesis introduces machines matching, drilling process and attentions of construction ; espe- cially in broken and leakage formation of Zijiushan gold-copper mine, normal and reverse circulation DTH drilling were used to improve drilling efficiency, high sampling rate is received with improved construction efficiency and reduced cost.
出处
《探矿工程（岩土钻掘工程）》
2017年第6期45-47,51,共4页
Exploration Engineering:Rock & Soil Drilling and Tunneling
关键词
空气潜孔锤钻进
反循环连续取样
双壁钻杆
紫金山金铜矿区
air DTH drilling
reverse circulation continuous sampling
dual-wall drill pipe
Zijinshan gold-copper mine
