| DX桩单桩沉降分析 |
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| 引用本文： | 唐松涛,袁希雨,陈立宏. DX桩单桩沉降分析[J]. 中国工程科学, 2012, 14(1): 41-45 |
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| 作者姓名： | 唐松涛 袁希雨 陈立宏 |
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| 作者单位： | 北京交通大学土木建筑工程学院,北京,100044 |
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| 基金项目： | 铁道部重点科技项目（2009J010-F） |
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| 摘 要： | DX桩作为变截面桩型的典型代表，具有与普通直孔灌注桩不同的荷载传递机理，使桩基的承载力大大提高，沉降变形显著减小。多点支承的特点使得DX桩的沉降机理变得十分复杂，计算分析困难。通过对DX单桩沉降的实例分析，对DX桩与直孔桩的沉降特性进行对比，验证了设计规程中DX桩的沉降计算公式和修正系数的可靠性。
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| 关 键 词： | DX桩；直孔桩；沉降；修正系数 |
| 收稿时间： | 2011-11-15 |
| 修稿时间： | 2011-11-15 |
Case study of DX single pile settlement |
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| Tang Songtao,Yuan Xiyu and Chen Lihong. Case study of DX single pile settlement[J]. Engineering Science, 2012, 14(1): 41-45 |
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| Authors: | Tang Songtao Yuan Xiyu Chen Lihong |
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| Affiliation: | School of Civil Engineering, Beijing Jiaotong University, Beijing 100044, China;School of Civil Engineering, Beijing Jiaotong University, Beijing 100044, China;School of Civil Engineering, Beijing Jiaotong University, Beijing 100044, China |
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| Abstract: | DX pile which is typical varied cross section pile has a different load transfer mechanism compared to straight pile. The bearing capacity of the pile is increased, while the settlement is significantly reduced at the same time. The characteristic of multi pivot bearing makes the settlement mechanism very complicated and hard to calculate. This paper compares the settlement characteristics of DX pile and straight pile on the basis of lots of projects to verify the DX pile settlement formula and the reliability of correction factor. |
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| Keywords: | DX pile straight pile settlement correction coefficient |
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