Finite element modelling of laterally loaded piles in a dense marine sand at Dunkirk

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Title: Finite element modelling of laterally loaded piles in a dense marine sand at Dunkirk
Authors: Taborda, D
Zdravkovic, L
Potts, DM
Burd, HJ
Byrne, BW
Gavin, K
Houlsby, GT
Jardine, RJ
Liu, T
Martin, CM
McAdam, RA
Item Type: Journal Article
Abstract: The paper presentsthedevelopment of a three-dimensional finite element model for pile tests in dense Dunkirk sand,conducted as part of the PISA project.The projectwas aimed at developing improved design methods for laterally loadedpiles, as used in offshore wind turbine foundations. The importance of the consistent and integrated interpretation of the soil data from laboratory and field investigations is particularly emphasised. The chosen constitutive model for sand is an enhanced version of the state parameter-based bounding surface plasticity model, which, crucially, is able to reproduce the dependency of sand behaviour on void ratio and stress level. The predictions from three-dimensional finite element analyses,performed before the field tests, show good agreement with the measured behaviour, proving the adequacy of the developed numerical model and the calibration process for the constitutive model. This numerical model directly facilitated the development of new soil reaction curves for use in Winkler-type design models for laterally loaded piles in natural marine sands.
Date of Acceptance: 3-Apr-2019
URI: http://hdl.handle.net/10044/1/70054
ISSN: 0016-8505
Publisher: Thomas Telford
Journal / Book Title: Géotechnique
Sponsor/Funder: DONG Energy Wind Power A/S
Geotechnical Consulting Group
Funder's Grant Number: 030-13-0133
GCG Chair
Keywords: 0905 Civil Engineering
Geological & Geomatics Engineering
Publication Status: Accepted
Embargo Date: publication subject to indefinite embargo
Appears in Collections:Faculty of Engineering
Civil and Environmental Engineering
Geotechnics



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