| DX桩在桥梁基础中的应用 |
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| 引用本文： | 张德华,齐万鹏,贺德新,贺建东,孙君平,郭桂霞.DX桩在桥梁基础中的应用[J].中国工程科学,2012,14(1):65-68. |
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| 作者姓名： | 张德华 齐万鹏 贺德新 贺建东 孙君平 郭桂霞 |
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| 作者单位： | 1. 北京交通大学土木建筑工程学院,北京,100044
2. 北京中阔地基基础技术有限公司,北京,100097 |
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| 基金项目： | 铁道部重点科技项目（2009G010-F） |
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| 摘 要： | DX桩以其单桩承载力高沉降量小的优点，在一般工业与民用建筑中得到了比较广泛的应用。最近一些桥梁工程也采用了这种新型桩技术。以北京市某桥梁工程为实例，通过试桩抗压静荷载试验，得出单桩竖向抗压承载力试验值，并且从单桩竖向抗压承载力、桩沉降量方面与直孔桩作了比较，还简单地分析了DX桩在受到竖向荷载作用时轴力沿桩身的分布情况以及在加载过程中DX桩上下盘盘阻的变化情况。
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| 关 键 词： | DX桩 承载力 桥梁 静载荷实验 |
| 收稿时间： | 2011/10/20 0:00:00 |
| 修稿时间： | 2011/11/14 0:00:00 |
Application of DX pile in bridge foundation |
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| Zhang Dehu,Qi Wanpeng,He Dexin,He Jiandong,Sun Junping and Guo Guixia.Application of DX pile in bridge foundation[J].Engineering Science,2012,14(1):65-68. |
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| Authors: | Zhang Dehu Qi Wanpeng He Dexin He Jiandong Sun Junping and Guo Guixia |
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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;;Beijing Zhongkuo Foundation Technology Co., Ltd, Beijing 100097, China;Beijing Zhongkuo Foundation Technology Co., Ltd, Beijing 100097, China;Beijing Zhongkuo Foundation Technology Co., Ltd, Beijing 100097, China;Beijing Zhongkuo Foundation Technology Co., Ltd, Beijing 100097, China |
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| Abstract: | DX pile is a new type of variable cross section pile developed from last decades. This pile has been applied in many foundations of buildings for its great advantage of high bearing capacity and low settlement. Nowadays some foundations of bridges of highway road have adopted DX pile. A case of DX pile in Beijing was analyzed in this paper. Two DX piles and one straight pile were tested by static loading method. The vertical bearing capacity and Q-s curves were obtained. The settlements of different piles were also compared. The axial force along the shaft of DX pile was listed and the effects of bearing capacity of bells were analyzed. |
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| Keywords: | DX pile bearing capacity bridge static load test |
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