Lateral Vibration of Piles and Pile Groups in Nonhomogeneous Transversely Isotropic Media
Publication: International Journal of Geomechanics
Volume 20, Issue 8
Abstract
A hybrid element method is presented for the dynamic analysis of piles and pile groups embedded in exponentially graded transversely isotropic media. In this method, the piles are modeled using finite elements, while the dynamic pile–soil–pile interaction is modeled through superposing the response of a series of massless rigid radiation discs defined at the nodal points of the elements. A set of complete potential functions are used to derive the analytical solutions for the lateral vibration of radiation discs embedded at different depths in a nonhomogeneous transversely isotropic half-space. A Boussinesq-type loading distribution is introduced to act on the radiation discs to satisfy the displacement compatibility conditions between piles and soil. Numerical results and comparisons with known analytical/numerical solutions are presented to demonstrate the application of this method. The influence of the soil nonhomogeneity on the lateral compliances of piles and pile groups is particularly emphasized.
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Data Availability Statement
All data derived or used during the study are available from the corresponding author by request.
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Published In
International Journal of Geomechanics
Volume 20 • Issue 8 • August 2020
Copyright
© 2020 American Society of Civil Engineers.
History
Received: Mar 18, 2019
Accepted: Feb 24, 2020
Published online: May 28, 2020
Published in print: Aug 1, 2020
Discussion open until: Oct 28, 2020
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