砂卵砾石层倒垂孔施工技术
投稿时间：2010-07-14  修订日期：2010-11-01  点此下载全文
引用本文：石绍云,袁宏光,李春海.砂卵砾石层倒垂孔施工技术[J].钻探工程,2011,38(2):43-45.
SHI Shao-yun,YUAN Hong-guang,LI Chun-hai. Construction Technology of Reversed Pendent Hole in Sand Gravel Stratum[J]. Drilling Engineering, 2011,38(2):43-45.
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作者单位E-mail
石绍云* 中国地质科学院探矿工艺研究所 ssy@cgiet.com 
袁宏光 四川省地矿局405地质队  
李春海 四川省地矿局405地质队  
中文摘要:针对砂卵砾石层倒垂孔施工中钻孔偏斜、孔内坍塌掉块、取心以及保护管的安装等困难问题，从钻机安装、钻具结构、设备能力、钻进技术参数等多方面采取相应的技术措施，取得了良好的施工效果。介绍了红叶电站砂卵砾石层倒垂孔的施工技术。
中文关键词:砂卵砾石层  倒垂孔  浮筒式测斜仪  钻进  取心  纠斜
 
Construction Technology of Reversed Pendent Hole in Sand Gravel Stratum
Abstract:According to the difficulties of borehole deviation, in-hole collapsing and block-falling, coring and installation in construction in sand gravel stratum, the corresponding technical measures were taken with good construction effect. The paper introduced the construction technology in sand gravel stratum of Hongye power station.
keywords:sand gravel stratum  reversed pendent hole  float inclinometer  drilling  coring  deviation correction
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