Comparison of 2D and 3D models for numerical simulation of vibration reduction by periodic pile barriers

被引：44
|
作者：
Liu, Xinnan [1 ]
Shi, Zhifei [1 ]
Mo, Y. L. [2 ]
机构：
[1] Beijing Jiaotong Univ, Sch Civil Engn, Beijing 100044, Peoples R China
[2] Univ Houston, Dept Civil & Environm Engn, Houston, TX 77004 USA
来源：
SOIL DYNAMICS AND EARTHQUAKE ENGINEERING | 2015年 / 79卷
基金：
中国国家自然科学基金;
关键词：
Periodic structure; Pile barriers; 2D model; 3D model; Quadrature element method; ATTENUATION ZONES; ELASTIC-WAVES; ROW;
D O I：
10.1016/j.soildyn.2015.09.009
中图分类号：
P5 [地质学];
学科分类号：
0709 ; 081803 ;
摘要：
With the assumption of infinite pile length, frequency attenuation zones of periodic pile barriers for plane waves are analyzed by the 2D periodic structure theory in the previous studies. 2D finite element models are used to validate the frequency attenuation zones obtained by the periodic structure theory, although the piles in practice are of finite length. This note aims to compare the 2D and 3D models for simulation of vibration reduction by periodic pile barriers. Based on the weak form quadrature element method, frequency attenuation zones are calculated by using the 2D periodic structure theory. Moreover, it is found that the 3D numerical results converge to the 2D numerical results as the pile length increases. Therefore, the 20 model can be used to consider the key properties that dominate the response of periodic pile barriers. (c) 2015 Elsevier Ltd. All rights reserved.
引用
收藏
页码：104 / 107
页数：4
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