| 流砂地层的非开挖导向钻进工法探讨 |
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| 引用本文： | 刘刚.流砂地层的非开挖导向钻进工法探讨[J].探矿工程,2005,32(1):32-34. |
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| 作者姓名： | 刘刚 |
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| 作者单位： | 煤炭科学研究总院西安分院钻探研究所 |
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| 摘 要： | 目前最流行的非开挖铺管技术为导向钻进法，但这种施工法在流砂地层施工时容易发生塌孔。为了解决这一问题，设计了一种燕尾形扩孔钻头，并提出了相应的工法，同时还提出了另外两种工法——注浆法和护壁法。
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| 关 键 词： | 非开挖 铺管 导向钻进 流砂地层 |
| 收稿时间： | 2004/3/29 0:00:00 |
| 修稿时间： | 2004/12/22 0:00:00 |
Research on No-dig Controlled Directional Drilling Tech. in Quicksand Formation |
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| LIU Gang.Research on No-dig Controlled Directional Drilling Tech. in Quicksand Formation[J].Exploration Engineering(Drilling & Tunneling),2005,32(1):32-34. |
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| Authors: | LIU Gang |
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| Institution: | Xian Branch of China Coal Research Institute |
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| Abstract: | Trenchless technology expands rapidly in China. At present, the most popular trenchless pipeline installation method is guided boring, but in the guided boring cave-in of the borehole wall eternally are encountered in quicksand formation. Searching for solutions, the author has designed a Swallow-tail-back reaming bit, in addition grouting and mud protection are recommended before and during pipe installation in quicksand formation respectively. |
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| Keywords: | no-dig pipelaying controlled directional drilling quicksand formation |
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