| 大口径旋挖钻具的研究及其应用 |
| 修订日期：2004-07-19 点此下载全文 |
| 引用本文：杨引娥.大口径旋挖钻具的研究及其应用[J].钻探工程,2004,31(11):38-40.. Application and Research of Large Diameter Rotary Drill Tools[J]. Drilling Engineering, 2004,31(11):38-40. |
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| 杨引娥 |
| 中国地质科学院勘探技术研究所 河北廊坊065000 |
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| 中文摘要:介绍了旋挖钻进所用的各种钻具结构特点及适用地层，包括螺旋钻具、旋挖钻斗、筒式环状钻头、扩底钻头。并介绍了这些钻具在青藏铁路等工程施工中应用所取得的良好效果。 |
| 中文关键词:旋挖钻进 旋挖钻具 钻孔桩 青藏铁路 |
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| Application and Research of Large Diameter Rotary Drill Tools |
| YANG Yin-e |
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| Abstract:The structure peculiarities and formation of application of different rotary drill tools, including helicoidal drill head, rotary drill bucket, tube-shaped ringlike bit and under reamer, were introduced. The application results of the tools in construction of railway Qinghai to Tibet were also briefly mentioned. |
| keywords:rotary drilling,rotary drill tools,bored pile,Railway Qinghai to Tibet |
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