Effect of Subsoil Liquefaction on Analysis of Pile-Soil Dynamic Interaction

被引：1

作者：

Wang Yanli ^{[1
]}

Rao Xibao ^{[1
]}

Wang Yong ^{[2
]}

机构：

[1] Yangtze River Sci Res Inst, Key Lab Geotech Mech & Engn, Minist Water Resources, Wuhan 430010, Peoples R China

[2] Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab & Geotech Engn, Wuhan 430071, Peoples R China

来源：

ADVANCES IN BUILDING MATERIALS, PTS 1-3 | 2011年 / 261-263卷

关键词：

sand liquefaction; dynamic interaction; earthquake response; finite difference;

D O I：

10.4028/www.scientific.net/AMR.261-263.1799

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

In order to analyze the effect of subsoil liquefaction on the seismic response of pile foundation, typical computation model in liquable ground was set up. Based on different constitutive models of the foundation soil before and after liquefaction and considering the nonlinear relation of pile-soil interaction, the dynamic finite difference analysis of group piles was carried out by using FLAC3D. The dynamic response characteristics of pile foundation considering liquefaction during earthquake are studied. Results show that the peak value of pore pressure ratio is different in different depth of the soil around pile, and the arriving time of the peak value of pore pressure ratio is later than that of the peak value of earthquake acceleration. At any time during the earthquake whether before or after the liquefaction the top moment of pile are larger than that of the pile shaft when the top pile is solidly embedded.

引用

页码：1799 / +

页数：2

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