Bayton, S.M. and Black, J.A. (2016) The effect of soil density on offshore wind turbine monopile foundation performance. In: Thorel, L., Bretschneider, A., Blanc, M. and Escoffier, S., (eds.) Proceedings of the 3rd European Conference on Physical Modelling in Geotechnics (Eurofuge 2016). Proceedings of the 3rd European Conference on Physical Modelling in Geotechnics (Eurofuge 2016), Nantes, France, 01-03 Jun 2016, Nantes, France. IFSTTAR , pp. 245-251. ISBN 9782857827160
Abstract
Centrifuge model tests were performed to evaluate the response of offshore wind turbine monopile foundations, in both loose and dense sand deposits, subjected to lateral loading at serviceability limit state (SLS). Model monopile experiments were performed at 100 gravities (100g) of a prototype pile of di-ameter 5 m embedded to a depth of 30 m (L/D = 6). Evolution of pile deflection, lateral force and pile bending moments were monitored. Comparison of the observed deflected shape and pile bending moments against p – y methods of analysis predictions (API, 2011; DNV, 2014) indicate that design codes may underestimate the two parameters by up to 20 % at SLS. An initial series of 10 cycles at SLS were also carried out on the two sand densities. Results indicate an amount of ‘locked-in’ bending moment upon unload; a phenomenon which is more evident for the loose sand deposit.
Metadata
Item Type: | Proceedings Paper |
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Authors/Creators: |
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Editors: |
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Copyright, Publisher and Additional Information: | © 2016 IFSTTAR. |
Dates: |
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Institution: | The University of Sheffield |
Academic Units: | The University of Sheffield > Faculty of Engineering (Sheffield) > Department of Civil and Structural Engineering (Sheffield) |
Funding Information: | Funder Grant number ENGINEERING AND PHYSICAL SCIENCE RESEARCH COUNCIL (EPSRC) EP/J013714/1 ENGINEERING AND PHYSICAL SCIENCE RESEARCH COUNCIL (EPSRC) EP/K040316/1 |
Depositing User: | Symplectic Sheffield |
Date Deposited: | 04 Jan 2018 16:49 |
Last Modified: | 04 Jan 2018 16:53 |
Published Version: | http://eurofuge2016.ifsttar.fr/ |
Status: | Published |
Publisher: | IFSTTAR |
Refereed: | Yes |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:125632 |