群桩场地液化土单一流速横向流动数值分析

英文篇名：Numerical analysis of group piles model in lateral spreading of liquefied ground in unit velocity
中文刊名：山西建筑
英文刊名：Shanxi Architecture
作者：邵琪 ; 唐小微
英文作者：SHAO Qi TANG Xiao-wei
中文关键词：地震液化 ; 群桩基础 ; 非线性数值分析
英文关键词：earthquake liquefaction ; foundation of pile group ; nonlinear numerical analysis
出版日期：2009-09-10
机构：大连理工大学岩土工程研究所;
年：2009
期：26
出版单位：山西建筑

摘要

采用三维动力FE-FD耦合法及弹塑性饱和土本构模型,对群桩—可液化土体系的拟做振动台实验进行非线性数值模拟,得到液化土横向流动中孔隙水压力、流动变形对群桩基础前后桩的内力分布和横向位移的影响规律。
Using the three-dimensional dynamics FE-FD coupling method and the constitutive model of elastoplastic saturated soil,the nonlinear numerical simulation is operated on the shake-talbe experiments against system of liquefid soil-piles,during which the laws of pore water pressure in flowing and the influence between flow distortion and internal force,lateral displacement in piles back and forth are discussed.

引文

[1]Wilson D W.Soil-pile-superstructure interaction in liquefyingsand and soft clay:[dissertation].Davis:University of Califor-nia at Davis,1998.
    [2]刘立平,李英民,韩军.桩—土—结构相互作用弹塑性地震反应分析[J].世界地震工程,2004,20(3):160-165.
    [3]熊辉,邹银生,许振宇.层状场域内桩—土—上部结构的整体动力有限元模拟[J].土木工程学报,2004,37(9):55-61.
    [4]熊辉,邹银生.群桩(土)—承台—结构的动力相互作用分析[J].工程力学,2004,21(4):75-80.
    [5]陈菊香,刘克萍,俞亚南,等.基于P—Y曲线的水平承载群桩有限元分析[J].江南大学学报,2005,4(2):163-167.
    [6]苏静波,邵国建,刘宁.基于P—Y曲线法的水平受荷桩非线性有限元分析[J].岩土力学,2006,27(10):1781-1785.
    [7]娄奕红,刘喜元.桩土相互作用的有限元—无界元分析[J].城市道桥与防洪,2004(2):33-36.
    [8]Oka F,Yashi ma A,Shibata T,et al.FEM-FDMcoupled lique-faction analysis of a porous soil using an elasic-plastic model[J].Applied Scientific Research,1994(52):209-245.