空气反循环连续取样钻进技术在紫金山金铜矿区的应用  

Application of Air Reverse Circulation Continuous Sampling Drilling Technology in Zijinshan Gold-copper Mine

作　　者：李汞 王德龙 王占丑 罗强 

机构地区：[1]福建岩土工程勘察研究院,福建福州351100 [2]无锡金帆钻凿设备股份有限公司,江苏无锡214112

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

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.

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 

分 类 号：P634[天文地球—地质矿产勘探]