Longitudinal vibration characteristics of a tapered pipe pile considering the transverse inertia effect and the vertical supporting of the surrounding soil

被引：0
|
作者：
Li Z. [1 ,2 ]
Pan Y. [1 ,2 ]
Zhang C. [3 ,4 ]
He X. [1 ,2 ]
Lu C. [1 ,2 ]
机构：
[1] Key Laboratory of Ministry of Education for Geomechanics and Embankment Engineering, Hohai University, Nanjing
[2] Geotechnical Research Institute, Hohai University, Nanjing
[3] College of Water Conservancy and Civil Engineering, Tibet Agriculture and Animal Husbandry University, Linzhi
[4] Research Center of Civil, Hydraulic and Power Engineering of Tibet, Linzhi
来源：
Zhendong yu Chongji/Journal of Vibration and Shock | 2024年 / 43卷 / 06期
关键词：
axisymmetric model; longitudinal vibration; tapered pipe pile; transverse inertia effect; vertical supporting of the surrounding soil;
D O I：
10.13465/j.cnki.jvs.2024.06.019
中图分类号：
学科分类号：
摘要：
The longitudinal vibration characteristics of a tapered pipe pile was investigated considering the transverse inertia effect of the pile and the vertical supporting of the surrounding soil. First, the pile-soil system was partitioned into finite segments in the vertical direction to consider the special structure of the tapered pipe pile and the stratification of the surrounding soil. The Voigt model was employed to simulate the vertical supporting of the surrounding soil on the pile shaft. The dynamic governing equation for the surrounding soil was built based on the three-dimensional axisymmetric model that only considered the vertical wave effect of the soil and was solved to derive the frictional force on the pile-soil interface. Then, the dynamic governing equation for the pile was established based on the Rayleigh-Love rod model considering the transverse inertia effect of the pile. By solving the dynamic governing equation of the pile and together with the Laplace transform and impedance function transfer method, the analytical solutions for the complex impedance and the velocity admittance considering the vertical supporting of the surrounding soil were derived. Further, the semi-analytical solution in the time domain was derived by virtue of the convolution theorem and inverse Fourier transform. Finally, the reliability of the present solution was verified by comparing with the published solution. Based on the present solution, a parametric analysis was conducted to analyse the influence of the pile transverse inertia effect, the vertical supporting of the surrounding soil and the pile parameters on the dynamic characteristics at the pile head. © 2024 Chinese Vibration Engineering Society. All rights reserved.
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页码：179 / 188
页数：9
相关论文
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