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Mathematical Problems in Engineering
Volume 2013, Article ID 269493, 13 pages
http://dx.doi.org/10.1155/2013/269493
Research Article

Horizontal Vibration of a Large-Diameter Pipe Pile in Viscoelastic Soil

1Key Laboratory of Ministry of Education for Geomechanics and Embankment Engineering, Geotechnical Research Institute, Hohai University, 1 Xikang Road, Nanjing 210098, China
2Key Laboratory of Ministry of Education for Geomechanics and Embankment Engineering, National Engineering Research Center of Water Resources Efficient Utilization and Engineering Safety, Hohai University, Nanjing 210098, China

Received 20 August 2013; Accepted 30 September 2013

Academic Editor: Claude Lamarque

Copyright © 2013 Changjie Zheng et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

An analytical solution is developed in this paper to investigate the horizontal dynamic response of a large-diameter pipe pile in viscoelastic soil layer. Potential functions are applied to decouple the governing equations of the outer and inner soil. The analytical solutions of the outer and inner soil are obtained by the method of separation of variables. The horizontal dynamic response and complex dynamic stiffnesses of the pipe pile are then obtained based on the continuity conditions between the pile and the outer and inner soil. To verify the validity of the solution, the derived solution in this study is compared with an existing solution for a solid pile. Numerical examples are presented to analyze the vibration characteristics of the pile and illustrate the effects of major parameters on the stiffness and damping properties.