| 竖向动荷载下桩尖附近应力场研究 |
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| 引用本文： | 杨忠胜,叶元芬,高云峰.竖向动荷载下桩尖附近应力场研究[J].公路,2007(11):64-67. |
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| 作者姓名： | 杨忠胜 叶元芬 高云峰 |
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| 作者单位： | 1. 中交第二公路勘察设计研究院有限公司,武汉市,430056
2. 重庆交通大学土木建筑学院,重庆市,400074 |
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| 摘 要： | 在合理假设桩侧摩阻力在桩尖平面应力分布的基础上,推导了桩尖附近应力场公式,得出了在桩长、桩径、桩周土内摩擦角一定的情况下,桩尖地基应力与桩顶竖向动荷载的时程反应规律。并对影响桩尖地基应力的各因素进行了敏感分析,为桩尖附近其他地下结构的验算提供依据。
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| 关 键 词： | 竖向动荷载 桩尖地基应力 时程反应 |
| 文章编号： | 0451-0712（2007）11-0064-04 |
| 修稿时间： | 2007-10-15 |
A Study on Stress Fields Near Pile Tip Under Vertical Dynamic Load |
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| YANG Zhong-sheng,YE Yuan-fen,GAO Yun-feng.A Study on Stress Fields Near Pile Tip Under Vertical Dynamic Load[J].Highway,2007(11):64-67. |
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| Authors: | YANG Zhong-sheng YE Yuan-fen GAO Yun-feng |
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| Institution: | 1. CCCC Second Highway Consultants Co. ,Itd., Wuhan 430056,China;2. School of Civil Engineering and Architecture, Chongqing Jiaotong University, Chongqing 400074,China |
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| Abstract: | On the basis of the reasonable assumptions of stress fields near pile tip caused by side friction resistance,formulae for foundation stress fields near pile tip are derived.Time-history analysis of stress near pile tip under vertical dynamic load is made.The relations between the maximum stress and some sensing factors are deduced.The study provides useful references to the analysis of other underground structures near pile tip. |
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| Keywords: | vertical dynamic load stress near pile tip time history analysis |
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