Finite-element modelling of laterally loaded piles in a dense marine sand at Dunkirk
File(s)
Published version
OA Location
Author(s)
Type
Journal Article
Abstract
The paper presents the development of a three-dimensional finite-element model for pile tests in dense Dunkirk sand, conducted as part of the PISA project. The project was aimed at developing improved design methods for laterally loaded piles, 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 Issued
2020-11-01
Date Acceptance
2019-04-03
Citation
Geotechnique: international journal of soil mechanics, 2020, 70 (11), pp.1014-1029
ISSN
0016-8505
Publisher
ICE Publishing
Start Page
1014
End Page
1029
Journal / Book Title
Geotechnique: international journal of soil mechanics
Volume
70
Issue
11
Copyright Statement
© 2020 The Author(s). Published with permission by the ICE under the CC-BY 4.0 license. (http://creativecommons.org/licenses/by/4.0/)
License URL
Sponsor
DONG Energy Wind Power A/S
DONG Energy Wind Power A/S
Geotechnical Consulting Group
Identifier
https://www.icevirtuallibrary.com/doi/10.1680/jgeot.18.PISA.006
Grant Number
030-13-0133
030-13-0133
GCG Chair
Subjects
Science & Technology
Technology
Engineering, Geological
Engineering
constitutive relations
design
finite-element modelling
numerical modelling
piles & piling
soil/structure interaction
PLASTICITY MODEL
STATE PARAMETER
0905 Civil Engineering
0907 Environmental Engineering
0914 Resources Engineering and Extractive Metallurgy
Geological & Geomatics Engineering
Publication Status
Published
Date Publish Online
2019-11-15