A study on lateral transient vibration of large diameter piles considering pile-soil interaction

被引：8

作者：

Chang, Xin Min ^{[1
]}

Liu, Dong Jia ^{[1
]}

Gao, Fang ^{[1
]}

Lu, Zhi Tang ^{[2
]}

Long, Li Li ^{[3
]}

Zhang, Jian ^{[1
]}

Geng, Xiao ^{[1
]}

机构：

[1] Hefei Univ Technol, Sch Resources & Environm Engn, Hefei 230009, Peoples R China

[2] Tongji Univ, Dept Geotech Engn, Shanghai 200092, Peoples R China

[3] Anhui Commun Vocat & Tech Coll, Dept Civil Engn, Hefei 230009, Peoples R China

来源：

SOIL DYNAMICS AND EARTHQUAKE ENGINEERING | 2016年 / 90卷

关键词：

Large diameter piles; Lateral transient vibration; Staggered grid finite difference method; Higdon absorbing boundary; Dynamic stiffness and damping; three-dimensional interference;

D O I：

10.1016/j.soildyn.2016.08.029

中图分类号：

P5 [地质学];

学科分类号：

0709 ; 081803 ;

摘要：

This study focuses on the three-dimensional (3-D) characteristics of lateral transient vibration of large diameter piles. Firstly, a 3-D pile-soil model in Cartesian coordinate system is established. Then, the governing equations are established. To eliminate the reflected waves from artificial boundaries, the second-order Higdon absorbing boundary condition is applied herein. Based on the boundary and initial conditions, the numerical solution is obtained using staggered grid finite difference method. The reliability of the numerical simulation is corroborated by comparing calculation results with measured data. It is shown that the optimal sensor location for receiving signal is the center of pile top, which is subjected to the minimum 3-D interference. Dynamic stiffness and damping at pile top are investigated by changing the parameters of pile-soil system. (C) 2016 Elsevier Ltd. All rights reserved.

引用

页码：211 / 220

页数：10

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