东海大桥主墩大直径钻孔灌注桩钻头设计 |
投稿时间:2004-06-30 修订日期:2004-10-28 点此下载全文 |
引用本文:王文明,吴初兴.东海大桥主墩大直径钻孔灌注桩钻头设计[J].钻探工程,2004,31(12):30-32.WANG Wen-ming,WU Chu-xing. Bit Design for Main Pier Bored Piles of Donghai Bridge[J]. Drilling Engineering, 2004,31(12):30-32. |
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中文摘要:针对钻头包泥堵钻和钙质胶结层难以进尺等影响钻进效率的几个问题,对刮刀钻头结构进行了改进设计,并取得了令人满意的效果。 |
中文关键词:东海大桥 主墩 钻孔灌注桩 钻头 导向钻头 刮刀钻头 切削齿 |
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Bit Design for Main Pier Bored Piles of Donghai Bridge |
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Abstract:Aimed at resolve the several problems which affect drilling efficiency, such as balling up and calcareous cementation , the design of blade bits was modified. And the results of the modification are satisfying. |
keywords:Donghai Bridge main pier bored piles bit pilot bits blade bit cutter |
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