Failure Mechanisms of Pile Foundations in Liquefiable Soil: Parametric Study
Publication: International Journal of Geomechanics
Volume 10, Issue 2
Abstract
This paper presents the response of piles in liquefiable soil under seismic loads. The effects of soil, pile, and earthquake parameters on the two potential pile failure mechanisms, bending and buckling, are examined. The analysis is conducted using a two-dimensional plain strain finite difference program considering a nonlinear constitutive model for soil liquefaction, strength reduction, and pile-soil interaction. The depths of liquefaction, maximum lateral displacement, and maximum pile bending moment are obtained for concrete and steel piles for different soil relative densities, pile diameters, earthquake predominant frequencies, and peak accelerations. The potential failure mechanisms of piles identified from the parametric analysis are discussed.
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Acknowledgments
The writers thank the reviewers for their critical comments which have been very useful in improving the work presented in this paper. The writers are grateful to Dr. Bhattacharya for his valuable technical support.
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Information & Authors
Information
Published In
International Journal of Geomechanics
Volume 10 • Issue 2 • April 2010
Pages: 74 - 84
Copyright
© 2010 ASCE.
History
Received: Jun 2, 2008
Accepted: Oct 9, 2009
Published online: Mar 15, 2010
Published in print: Apr 2010
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