Please use this identifier to cite or link to this item: http://hdl.handle.net/10553/49171
Title: Dynamic impedances of piles and groups of piles in saturated soils
Authors: Maeso, Orlando 
Aznárez, Juan J. 
Garcia, F 
Keywords: Elastic Half-Space
Frequency-Domain
Harmonic Motion
Bar
Poroelasticity
Propagation
Vibration
Bem
Issue Date: 2005
Publisher: 0045-7949
Journal: Computers and Structures 
Abstract: A three-dimensional boundary element model is presented for the computation of time-harmonic dynamic stiffness coefficients of piles and pile groups embedded in two-phase poroelastic soils. Piles are modelled as continuum elastic solids and soil as a fluid-filled poroelastic half-space governed by Biot's theory. Piles are bonded to the surrounding medium along the contact surface where rigorous pile-soil interaction conditions are imposed. The technique has been applied to the calculation of vertical and horizontal dynamic impedance functions of piles and 2 x 2 pile groups. Selected numerical results are presented to portray the influence of excitation frequency, pile stiffness, porous medium properties and kind of pile-soil contact conditions. (c) 2004 Elsevier Ltd. All rights reserved.
URI: http://hdl.handle.net/10553/49171
ISSN: 0045-7949
DOI: 10.1016/j.compstruc.2004.10.015
Source: Computers and Structures[ISSN 0045-7949],v. 83, p. 769-782
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