| 多层地基土超长钻孔桩成桩技术分析 |
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| 引用本文： | 袁光英.多层地基土超长钻孔桩成桩技术分析[J].广西城镇建设,2011(7):62-65. |
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| 作者姓名： | 袁光英 |
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| 作者单位： | 陕西铁路工程职业技术学院 |
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| 摘 要： | 以济南市二环西路改造为背景，介绍济南市太平河北桥在施工过程中遇到多层地基土及不稳定地层等技术难题时，选用ZSD-3000型液压钻机和西325mm×25mm法兰钻杆，配双侧高压气管，采用反循环成孔施工配合气举反循环工艺，保证灌注前孔内泥浆指标，从而提高了施工效率，取得了较好的效果。
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| 关 键 词： | 多层地基土 不稳定地层 超长钻孔桩 施工工艺 |
On PilinU TochnolooY for Supor-lonU Borod Pilo with Multi-layor Subsoil |
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| Yuan Guangying.On PilinU TochnolooY for Supor-lonU Borod Pilo with Multi-layor Subsoil[J].Cities and Towns Construction in Guangxi,2011(7):62-65. |
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| Authors: | Yuan Guangying |
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| Affiliation: | Yuan Guangying |
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| Abstract: | Together with project case, this paper discusses on piling technology for super-long bored pile with multi-layer subsoil by equipment selection, drilling tools, construction process and test. |
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| Keywords: | multi-bayer subsoil unstable stratum super-long bored pile engineering technology |
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