两阶段法分析基坑开挖对邻近桩基的影响

两阶段法分析基坑开挖对邻近桩基的影响
摘要:采用两阶段分析方法,基于Winkler地基模型以及桩土变形协调条件,建立单桩水平位移控制方程。应用简化Mindlin方程,分析桩-桩相互作用及桩-土相互影响。结合以上几点,建立群桩控制微分方程组求解。最后的算例分析将该方法的计算结果与离心机试验结果进行对比。

Abstract:Based on Winkler's foundation model and compatibility condition of pile and surrounding soil, Two-stage Method is used for setting up horizontal displacement governing equation of a single pile. Pile-pile interactions and those between pile and surrounding soil can be achieved according to simplified Mindlin's equation. Then, governing equations for pile groups are obtained by combining points above. Comparisons are drawn between the observed results of centrifuge model tests and those computed by the studied method.

中文标题：
两阶段法分析基坑开挖对邻近桩基的影响
Analysis of Pile Foundation Behavior Due to Excavation by Two-stage Method

作者：
于峰
Yu Feng
作者简介:于峰,1984年生,男,汉族,辽宁大连人,硕士研究生,主要研究方向为岩土及地下工程。E-mail:colincalling@163.com。
通讯地址：
同济大学地下建筑与工程系, 岩土及地下工程教育部重点实验室, 上海 200092
DepartmentofGeotechnicalEngineering,KeyLaboratoryofGeotechnicalandUndergroundEngineeringofMinistryofEducation,TongjiUniversity,Shanghai200092China

中图分类号:TU473.1

出版物：岩土工程技术
收稿日期:2008-05-06
网络出版日期:2021-07-07


关键词:两阶段分析法,Winkler地基模型,被动桩,群桩
Key words:Two-stage Method,Winkler's foundation model,passive pile,pile groups
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