| 基于Poulos弹性理论的被动桩改进算法 |
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| 引用本文： | 陈福全,黄伟达. 基于Poulos弹性理论的被动桩改进算法[J]. 岩土力学, 2008, 29(4): 905-910 |
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| 作者姓名： | 陈福全 黄伟达 |
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| 作者单位： | 1. 福州大学,土木工程学院,福州,350108
2. 福建省建筑科学研究院,岩土所,福州,350025 |
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| 基金项目： | 福建省青年科技人才创新基金 |
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| 摘 要： | 传统的Poulos弹性理论仅适合于均质土中土体侧向位移时桩的性状分析，无法考虑土的层状特性。通过引入层状地基中作用一水平集中力的广义Mindlin解和地面作用有竖向荷载时的应力和位移通解，对Poulos方法进行了改进，使之扩展到多层土中，还用于研究堆载条件下的被动桩变形和受力响应。算例分析表明，改进弹性理论要比Poulos方法更为严密、合理，提高了计算精度，应用范围也更广。
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| 关 键 词： | Poulos弹性理论 层状地基 Mindlin解 被动桩 |
| 文章编号： | 1000-7598-(2008)04-905-06 |
| 收稿时间： | 2006-09-27 |
| 修稿时间： | 2006-09-27 |
A modified analysis method for passive pile based on Poulos's elastic theory |
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| CHEN Fu-quan,HUANG Wei-da. A modified analysis method for passive pile based on Poulos's elastic theory[J]. Rock and Soil Mechanics, 2008, 29(4): 905-910 |
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| Authors: | CHEN Fu-quan HUANG Wei-da |
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| Affiliation: | 1. College of Civil Engineering, Fuzhou University, Fuzhou 350108, China; 2. Institute of Geotechnical Engineering, Fujian Academy of Building Research, Fuzhou 350025, China |
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| Abstract: | The classical Poulos’s elastic theory is only suitable for the behavior analysis of piles subjected to lateral soil movement in homogenous soil. But it cannot take the layered soil into account. Therefore, to satisfy the characteristics of layer soil, Poulos’s method is modified by using the Mindin’s solution considering a horizontal concentrated force, and also considering the stress &;displacement solution under the ground vertical load in sandwich ground, which can be used to study the movement and internal force response of passive pile due to surcharge loading. A calculation case indicates that the modified method is more strict and reasonable than that of Poulos, with a higher calculation precision. The approach proposed can be used extensively. |
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| Keywords: | Poulos’s elastic theory sandwich ground Mindlin’s solution passive pile |
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