黄金坪水电站深厚覆盖层跟管钻进工艺研究  

Technology Research on Drilling in Deep Alluvium with Case in Huangjinping Hydropower Station

作　　者：陈修星[1] 冯杨文[1] 侯锦[1] 赵晓俐[1] 

机构地区：[1]四川准达岩土工程有限责任公司,四川成都610072

出　　处：《探矿工程（岩土钻掘工程）》2008年第11期10-12,16,共4页Exploration Engineering:Rock & Soil Drilling and Tunneling

摘　　要：结合大渡河黄金坪电站深厚覆盖层帷幕灌浆试验项目需要,对深厚覆盖层跟76 m深套管护壁钻进这一高难度技术进行攻关研究,并提出两级跟管的钻孔结构,圆满实现了试验灌浆孔非灌段跟76 m深套管的目标,为今后类似工程跟管施工提供了重要的参考借鉴作用。According to the requirement of curtain grouting test in deep alluvium of Huangjinping hydropower station, research was made on highly-difficult technology of drilling with 76m long case, and the borehole structure with two-step casing was put forward.

关 键 词：黄金坪水电站 深厚覆盖层 偏心跟管 两级跟管 

分 类 号：P634.5[天文地球—地质矿产勘探]