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饱和土中桩水平振动引起土层复阻抗分析研究

余俊 尚守平 李忠 任慧

岩土力学2009,Vol.30Issue(12):3858-3864,3870,8.
岩土力学2009,Vol.30Issue(12):3858-3864,3870,8.

饱和土中桩水平振动引起土层复阻抗分析研究

Study of resitance factor of saturated soil caused by horizontal vibration of pile

余俊 1尚守平 2李忠 3任慧2

作者信息

  • 1. 中南大学,土木建筑学院,长沙,410075
  • 2. 湖南大学,土木工程学院,长沙,410082
  • 3. 同济大学,地下建筑与工程系,上海,200092
  • 折叠

摘要

Abstract

Based on Biot's consolidation equation,the characteristics of the resistance of soil caused by horizontal vibration of elastic bearing pile embedded in saturated soil are analytically studied. Transforming the consolidation equation, by virtue of differential operator splitting and variable separation method, the horizontal dynamical characteristics of soil under steady state of pile-soil interaction are obtained. The comparisons with the equivalent single-phase solution and the single-phase solution are presented; and the condition of the solution that can be equivalent to the equivalent single-phase solution is indicated. A parametric study is conducted to determine the main features of pile-soil interaction in horizontal vibration, the effects of the permeability coefficient, the pile-soil modulus ratio and the pile slenderness on resistance of soil layer are studied.

关键词

饱和土/水平振动/等效单相解/复阻抗因子

Key words

saturated soil/ horizontal vibration/ equivalent single-phase solution/ impedance

分类

建筑与水利

引用本文复制引用

余俊,尚守平,李忠,任慧..饱和土中桩水平振动引起土层复阻抗分析研究[J].岩土力学,2009,30(12):3858-3864,3870,8.

基金项目

湖南省自然科学基金(No. 08jj4016)、国家自然科学基金(No. 50808078)和博士点基金新教师基金(No. 20070532090). (No. 08jj4016)

岩土力学

OA北大核心CSCDCSTPCD

1000-7598

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