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Review Articles

Dynamic Models of Piled Foundations

[+] Author and Article Information
Kirsty A. Kuo

e-mail: kan26@cam.ac.uk

Hugh E. M. Hunt

e-mail: hemh1@cam.ac.uk
Engineering Department,
University of Cambridge,
Trumpington St. Cambridge B2 1PZ, UK

Manuscript received January 25, 2013; final manuscript received May 15, 2013; published online July 15, 2013. Editor: Harry Dankowicz.

Appl. Mech. Rev 65(3), 031003 (Jul 15, 2013) (9 pages) Paper No: AMR-13-1008; doi: 10.1115/1.4024675 History: Received January 25, 2013; Revised May 15, 2013

The vibration behavior of piled foundations is an important consideration in fields such as earthquake engineering, construction, machine-foundation design, offshore structures, nuclear energy, and road and rail development. This paper presents a review of the past 40 years' literature on modeling the frequency-dependent behavior of pile foundations. Beginning with the earliest model of a single pile, adapted from those for embedded footings, it charts the development of the four pile-modeling techniques: the “dynamic Winkler-foundation” approach that uses springs to represent the effect of the soil; elastic-continuum-type formulations involving the analytical solutions for displacements due to a subsurface disk, cylinder, or other element; boundary element methods; and dynamic finite-element formulations with special nonreflecting boundaries. The modeling of pile groups involves accounting for pile-soil-pile interactions, and four such methods exist: interaction factors; complete pile models; the equivalent pier method; and periodic structure theory. Approaches for validating pile models are also explored.

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Figures

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Fig. 1

The dynamic Winkler-foundation approach

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Fig. 2

The boundary element mesh used by Talbot and Hunt [48]. Copyright IMechE 2003, published by SAGE Publications Ltd, all rights reserved.

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Fig. 3

The finite element model used by Wu and Finn [59,60]. Copyright 2008 Canadian Science Publishing or its licensors. Reproduced with permission.

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Fig. 4

The process used by Mylonakes and Gazetas [74] for calculating axial interaction factors. Copyright Elsevier. Reproduced with permission.

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Fig. 5

A four-pile row mesh, representing the model used by Coulier [49]

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Fig. 6

A representation of periodic structure theory applied to a pile row, as used by Talbot [88]. Reproduced with permission of the author.

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