可液化地基群桩基础地震反应总应力与有效应力分析的比较

戴琰; 陈国兴; 王志华

doi:10.13409/j.cnki.jdpme.2017.05.015

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可液化地基群桩基础地震反应总应力与有效应力分析的比较

会讯 | 更新时间：2025-12-11

- 可液化地基群桩基础地震反应总应力与有效应力分析的比较
- Comparison Study of Total Stress and Effective Stress Analyses for Seismic Response of Pile Group Foundation in Liquefiable Soil
- 防灾减灾工程学报 2017年37卷第5期页码：795-801
- 作者机构：
- 作者简介：
- 基金信息：
  
  交通运输部西部交通建设科技项目（2009318225100）资助
- DOI：10.13409/j.cnki.jdpme.2017.05.015
  中图分类号： U435
- 纸质出版：2017
- 稿件说明：
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[1]戴琰,陈国兴,王志华.可液化地基群桩基础地震反应总应力与有效应力分析的比较[J].防灾减灾工程学报,2017,37(05):795-801.

戴琰, 陈国兴, 王志华. Comparison Study of Total Stress and Effective Stress Analyses for Seismic Response of Pile Group Foundation in Liquefiable Soil[J]. 2017, 37(5): 795-801.
[1]戴琰,陈国兴,王志华.可液化地基群桩基础地震反应总应力与有效应力分析的比较[J].防灾减灾工程学报,2017,37(05):795-801. DOI： 10.13409/j.cnki.jdpme.2017.05.015.

戴琰, 陈国兴, 王志华. Comparison Study of Total Stress and Effective Stress Analyses for Seismic Response of Pile Group Foundation in Liquefiable Soil[J]. 2017, 37(5): 795-801. DOI： 10.13409/j.cnki.jdpme.2017.05.015.

摘要

可液化土体动力特性的描述方法可能对群桩基础动力反应产生显著的影响。基于Davidenkov本构模型和Byrne改进的增量孔压模型

对比分析了总应力法和有效应力法计算的可液化地基中群桩基础地震反应特性。结果表明

群桩外侧地基最易液化

自由场地基次之

群桩内地基土最不易液化;与总应力法的计算结果相比

有效应力法计算得到的地表加速度反应谱谱值的短周期过滤和长周期放大效应更加显著

卓越周期向长周期方向移动;同时

有效应力法计算得到的桩身弯矩也有所增大。

Abstract

Seismic responses of pile group may be varies significantly when adopting different constitutive models to describe the liquefiable soils.Based on the modified Davidenkov constitutive model and the strain-based Byrne pore pressure increment model

comparison of total stress and effective stress analysis for seismic responses of the pile group foundation in liquefiable soil was performed.The results show that soil outside the pile group is higher liquefaction potential

soil in free field is low liquefaction potential

and soil within the pile group is lowest liquefaction potential.Compared with the results of total stress analyses

the surface acceleration response spectra of effective stress analyses presents the characteristics of low frequency amplification and high frequency wave-filtering

and the predominant periods of spectra move toward long periods;in addition

the bending moments of the piles along the depth are slightly larger.

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references

基于修正Davidenkov本构模型与Byrne孔压增量模型的有效应力算法及其验证 [J]. 阮滨,赵丁凤,陈国兴,朱翔. 应用基础与工程科学学报 . 2017(05)

Lateral response of pile foundations in liquefiable soils [J]. Asskar Janalizadeh,Ali Zahmatkesh. Journal of Rock Mechanics and Geotechnical Engineering . 2015(05)

Response of a pile group behind quay wall to liquefaction-induced lateral spreading:a shake-table investigation [J]. Tang Liang,Zhang Xiaoyu,Ling Xianzhang,Su Lei,Liu Chunhui. Earthquake Engineering and Engineering Vibration . 2014(04)

A comparative study of bridge damage due to the Wenchuan, Northridge, Loma Prieta and San Fernando earthquakes [J]. George C.Lee. Earthquake Engineering and Engineering Vibration . 2009(02)

Collapse of Showa Bridge during 1964 Niigata earthquake: A quantitative reappraisal on the failure mechanisms [J] . S. Bhattacharya,K. Tokimatsu,K. Goda,R. Sarkar,M. Shadlou,M. Rouholamin. Soil Dynamics and Earthquake Engineering . 2014

Three-dimensional numerical simulation of earthquake damage to group-piles in a liquefied ground [J] . R. Uzuoka,N. Sento,M. Kazama,F. Zhang,A. Yashima,F. Oka. Soil Dynamics and Earthquake Engineering . 2006 (5)

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