铁道科学与工程学报2017，Vol.14Issue(3)：495-506,12.
饱和土中考虑竖向荷载的端承桩水平振动响应解析解
Analytical solution for horizontal dynamic response of an end-bearing pile considering axial loads in saturated soil
张慧 1李小娟 1曹兆虎 2屈青山1
作者信息
- 1. 黄淮学院 建筑工程学院,河南 驻马店 463000
- 2. 河海大学 土木与交通学院,江苏 南京 21098
- 折叠
摘要
Abstract
The lateral dynamic response of an end axial loaded pile in saturated soil is investigated in this paper. The pile is considered as an Euler Model. Potential functions are introduced to decouple the wave equation of the soil by considering variations of soil stress and strain along depth based on Biot dynamic consolidation theory. Expressions of soil stress and displacement are obtained by Laplace transformation and variable separation method. The lateral displacement and complex impedances of the pile under horizontal vibration are derived based on the continuous conditions between the pile and soil. Numerical analysis studies the distribution law of pore pressures and influences of axial loads and slenderness ratio on displacements and internal forces of pile. The study shows that the soil pore pressure reaches a maximum value near the pile-soil interface; redistributions of pile displacements and internal forces are caused by axial loads and slenderness ratio.关键词
饱和土/竖向荷载/水平振动/复阻抗/解析解Key words
saturated soil/axial loads/lateral dynamics/complex impedance/analytical solution分类
建筑与水利引用本文复制引用
张慧,李小娟,曹兆虎,屈青山..饱和土中考虑竖向荷载的端承桩水平振动响应解析解[J].铁道科学与工程学报,2017,14(3):495-506,12.
