Influence of soil plug effect on the torsional dynamic response of a pipe pile

被引：31
作者：
Liu, Hao [1 ]
Jiang, Guosheng [1 ]
El Naggar, M. Hesham [1 ,2 ]
Wu, Wenbing [1 ,2 ,3 ]
Mei, Guoxiong [1 ,3 ]
Liang, Rongzhu [1 ]
机构：
[1] China Univ Geosci, Engn Res Ctr Rock Soil Drilling & Excavat & Prote, Minist Educ, Fac Engn, Wuhan 430074, Hubei, Peoples R China
[2] Univ Western Ontario, Geotech Res Ctr, Fac Engn, London, ON N6A 5B9, Canada
[3] Guangxi Univ, Coll Civil Engn & Architecture, Key Lab Disaster Prevent & Struct Safety, Minist Educ, Nanning 530004, Guangxi, Peoples R China
来源：
JOURNAL OF SOUND AND VIBRATION | 2017年 / 410卷
基金：
中国博士后科学基金; 中国国家自然科学基金;
关键词：
Torsional vibration; Pipe pile; Soil plug effect; Additional mass model; Fictitious soil pile model; Testing velocity; ISOTROPIC SATURATED SOIL; END BEARING PILE; POROELASTIC MEDIUM; VISCOELASTIC SOIL; HALF-SPACE; FOUNDATIONS; MODEL; VIBRATIONS;
D O I：
10.1016/j.jsv.2017.08.026
中图分类号：
O42 [声学];
学科分类号：
070206 ; 082403 ;
摘要：
The additional mass model is introduced to simulate the dynamic interaction of soil plug and pipe pile under small deformations and strains. In the additional mass model, the inertia and damping effect of soil plug, and the displacement phase difference between soil plug and pipe pile are taken into consideration. Based on the additional mass model, the analytical solutions of the torsional dynamic response of a pipe pile in the frequency domain are derived by utilizing the Laplace transform technique and impedance transfer function. The corresponding quasi-analytical solution in the time domain for a pipe pile subjected to semi-sinusoidal exciting force is obtained by using the inverse Fourier transform. A parameter sensitivity analysis of the additional mass model is conducted to determine the approximate range of the parameter values of the distributed Voigt model. The validity of the presented solutions is also verified by comparing the torsional dynamic behavior of the pipe pile calculated via the additional mass model with those based on the plane strain model. Utilizing the developed solutions, a parametric study is conducted to investigate the influence of the properties of soil-pile system on the torsional vibration characteristics of pipe pile. (C) 2017 Elsevier Ltd. All rights reserved.
引用
收藏
页码：231 / 248
页数：18
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