| 堆载下被动桩与土体相互作用的FLAC三维分析 |
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| 引用本文： | 黄伟达.堆载下被动桩与土体相互作用的FLAC三维分析[J].工程地质学报(英文版),2007,15(1):98-102. |
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| 作者姓名： | 黄伟达 |
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| 作者单位： | 福建省建筑科学研究院岩土所,福州350025 |
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| 摘 要： | 被动桩问题是近年来岩土工程领域的一个研究热点,但是对于堆载下桩、土之间复杂的相互作用一直缺乏系统的三维分析。本文采用FLAC3D建立了有限差分模型,对单排桩三维工作性状进行分析,重点研究堆载条件、桩身刚度及土层分布对桩身位移和桩侧土压力的影响情况,并籍此对软土地基的桩、土共同作用机理加以阐述,得出一些有益结论。分析表明,软土地基中桩侧土压力的分布可简化为线性模式,本文对此进行了线性拟合。
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| 关 键 词： | 堆载 被动桩 三维数值分析 土压力 |
| 文章编号： | 1004-9665/2007/15（01）-0098-05 |
| 收稿时间： | 2006-03-28 |
| 修稿时间： | 2006-03-282006-05-22 |
THREE - DIMENSIONAL FLAC3D ANALYSIS OF BEHAVIOUR OF PASSIVE PILES SUBJECTED TO SURROUNDING SOIL MOVEMENT |
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| HUANG Weida.THREE - DIMENSIONAL FLAC3D ANALYSIS OF BEHAVIOUR OF PASSIVE PILES SUBJECTED TO SURROUNDING SOIL MOVEMENT[J].Journal of Engineering Geology,2007,15(1):98-102. |
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| Authors: | HUANG Weida |
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| Institution: | Geotechnical Engineering Institute, Fujian Acedemy of Building Research, Fuzhou 350025 |
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| Abstract: | The passive pile has received high attentions in recent years.This paper presents a systemic three-dimensional numerical analysis for the complicated interaction between pile and soil under preloading.The paper establishes 3D model using FLAC~(3D) for the working property study of single row piles.The effect of some key parameters on the interaction is mainly researched.They include preloading condition,stiffness of pile and soil distributing.Based on the results of numerical analysis,the interaction mechanism between passive pile and soil in soft clay is further expatiated,and a linear distributing pattern of soil pressure along pile is obtained with a linear curving method. |
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| Keywords: | Preloading Passive pile Three-dimensional numerical analysis Soil pressure |
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