Nonlinear Numerical Analysis of Caisson Quay Failure Due to Soil Liquefaction and of Soil Strengthening Method

刘晓; 唐小微; 栾茂田

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Nonlinear Numerical Analysis of Caisson Quay Failure Due to Soil Liquefaction and of Soil Strengthening Method

更新时间：2025-12-11

- Nonlinear Numerical Analysis of Caisson Quay Failure Due to Soil Liquefaction and of Soil Strengthening Method
- Vol. 29, Issue 5, Pages: 518-523(2009)
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  CLC： U435
- Published：2009
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[1]刘晓,唐小微,栾茂田.地基液化导致沉箱码头破坏及地基加固方法的非线性数值分析[J].防灾减灾工程学报,2009,29(05):518-523.

刘晓, 唐小微, 栾茂田. Nonlinear Numerical Analysis of Caisson Quay Failure Due to Soil Liquefaction and of Soil Strengthening Method[J]. 2009, 29(5): 518-523.
[1]刘晓,唐小微,栾茂田.地基液化导致沉箱码头破坏及地基加固方法的非线性数值分析[J].防灾减灾工程学报,2009,29(05):518-523. DOI：

刘晓, 唐小微, 栾茂田. Nonlinear Numerical Analysis of Caisson Quay Failure Due to Soil Liquefaction and of Soil Strengthening Method[J]. 2009, 29(5): 518-523. DOI：

摘要

地震作用引发的地基液化

往往导致沉箱基础的破坏。本文基于Biot两相饱和多孔介质动力耦合理论

采用FE-FD耦合数值分析方法

对液化海床沉箱基础的地震反应进行非线性有效应力分析。在数值分析过程中

建立了以土骨架位移和超静孔隙水压力表达的us-pw动力固结方程和循环弹塑性本构模型

该方法能够很好地模拟地震作用下沉箱码头的动力特性及液化破坏的影响。通过数值模拟计算

分析了采用碎石桩进行置换砂区域的防液化加固方法

并就碎石桩处理区域的选择提出了建议。

Abstract

The soil liquefaction due to earthquakes will usually result in the damage of caisson foundation.Based on the Biot′s dynamic consolidation theory for two-phase media

a coupled FE-FD method is used in this paper to analyze the effective pore water pressure in liquefied seabed caisson foundation.In the numerical analysis

us-pw formulation of dynamic consolidation equation and cyclic elastic-plastic constitutive model is used

and the analytic results have shown that the method performs well in simulating the seabed liquefaction process.The strengthening method to prevent the liquefaction of sand zones by gravel piles was analyzed with the numerical method to suggest how to select the sand zones treated by gravel piles.

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references

浆固碎石桩荷载传递特性试验与数值分析 [J]. 刘汉龙,左威龙,陈永辉,闻世强. 防灾减灾工程学报 . 2008(04)

碎石桩复合地基抗液化性能的数值模拟 [J]. 张艳美,张旭东,张鸿儒. 工业建筑 . 2008(02)

液化场地桩-土-结构动力相互作用的有限元分析 [J]. 黄雨,八嶋厚,张锋. 岩土工程学报 . 2005(06)

Goodman接触面单元的修正与探讨 [J]. 李守德,俞洪良. 岩石力学与工程学报 . 2004(15)

大型沉箱式码头岸壁地震反应分析 [J]. 刘汉龙,井合进,一井康二. 岩土工程学报 . 1998(02)

Seismic Response of Gravity Quay Walls. I: Centrifuge Modeling [J] . X. Zeng. Journal of Geotechnical and Geoenvironmental Engineering . 1998 (5)

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