| 青藏铁路基础桩孔施工用旋挖钻具的研究 |
| 投稿时间：2003-04-30 修订日期：2003-04-30 点此下载全文 |
| 引用本文：于好善.青藏铁路基础桩孔施工用旋挖钻具的研究[J].钻探工程,2003,30(4):1-3.YU Hao-shan. Research on Rotary Downhole Drilling Tools Used in Foundation Pile Construction of Railway Qinghai to Tibet[J]. Drilling Engineering, 2003,30(4):1-3. |
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| 中文摘要:根据青藏铁路采用旋挖钻进施工的特点，研制出适应青藏铁路各种地层条件的旋挖钻具，并制定出一套科学的旋挖钻进工艺，从而解决了青藏铁路桥桩基础施工这一世界难题，也为实现旋挖设备和钻具国产化打下良好基础。 |
| 中文关键词:青藏铁路 冻土 旋挖钻机 螺旋钻头 旋挖钻斗 筒式钻头 扩底钻头 |
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| Research on Rotary Downhole Drilling Tools Used in Foundation Pile Construction of Railway Qinghai to Tibet |
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| Abstract:From the specialty of rotary drilling technique applied in construction of Railway Qinghai to Tibet, several kinds of rotary drilling tools were developed to match the formation conditions under the railway Qinghai to Tibet, and their relative application techniques were scientifically designed. So the problems in foundation construction of railway Qinghai to Tibet which are difficult to all world were solved, making a foundation for manufacturing rotary drilling equipment and tools within China. |
| keywords:Railway Qinghai to Tibet frozen earth rotary drill rotary drill bits rotary drilling buckets barrel shaped bits reaming bits |
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