| 刚性桩复合地基竖向承载特性分析 |
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| 引用本文： | 池跃君, 宋二祥, 陈肇元. 刚性桩复合地基竖向承载特性分析[J]. 工程力学, 2003, 20(4): 9-14. |
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| 作者姓名： | 池跃君 宋二祥 陈肇元 |
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| 作者单位： | 清华大学土木工程系, 北京, 100084 |
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| 基金项目： | 北京市自然科学基金资助项目(8982011) |
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| 摘 要： | 为研究刚性桩复合地基的承载机理,利用有限元程序,对刚性桩复合地基在竖向荷载下的轴力、沉降特性进行了计算分析,着重讨论了桩身轴力、基础沉降等随垫层厚度、垫层模量、桩长、土体模量及桩间距等因素变化的规律,并在此基础上对刚性桩复合地基设计参数的选取原则进行了讨论。
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| 关 键 词： | 刚性桩复合地基 沉降 有限元 |
| 文章编号： | 1000-4750(2003)04-0009-06 |
| 收稿时间： | 2001-12-06 |
| 修稿时间： | 2002-04-04 |
ANALYSIS OF BEARING PERFORMANCE OF RIGID PILE COMPOSITE FOUNDATION UNDER VERTICAL LOADS |
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| CHI Yue-jun, SONG Er-xiang, CHEN Zhao-yuan. ANALYSIS OF BEARING PERFORMANCE OF RIGID PILE COMPOSITE FOUNDATION UNDER VERTICAL LOADS[J]. Engineering Mechanics, 2003, 20(4): 9-14. |
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| Authors: | CHI Yue-jun SONG Er-xiang CHEN Zhao-yuan |
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| Affiliation: | Dept. of Civil Engineering, Tsinghua University, Beijing 100084, China |
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| Abstract: | The rigid pile composite foundation consists of the raft, the piles, the foundation soil and the cushion between the raft and the piles. Research on the rigid pile composite foundation is at present still inadequate, and the knowledge on its working mechanism is quite limited. In this paper, the working performance of rigid pile composite foundation is analyzed by using the finite element method. Factors influencing axial stress of piles and settlements of rigid pile composite foundation under vertical load are studied. The influence factors include cushion thickness, cushion modulus, pile length, soil modulus, pile spacing, etc. The design principles of composite foundation are proposed. |
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| Keywords: | rigid pile composite foundation settlement finite element method |
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