The influence of the installation advancement ratio on the cyclic performance of a single-helix pile for floating offshore wind applications

Wei Wang; Michael Brown; Yaseen Sharif; Craig Davidson

doi:10.3723/OLMI4175

The influence of the installation advancement ratio on the cyclic performance of a single-helix pile for floating offshore wind applications

Wei Wang, Michael Brown, Yaseen Sharif, Craig Davidson

Civil Engineering

Research output: Contribution to conference › Paper › peer-review

2 Citations (Scopus)

Abstract

Upscaling of screw piles has been proposed for offshore use in foundations and anchors. This upscaling can result in a significant increase in vertical installation forces. Subsequent research has shown that this can be reduced and even eliminated by using over-flighting techniques (installation advancement ratio, AR < 1.0), which can also improve the in-service monotonic uplift performance. In this study, centrifuge tests were conducted to investigate the cyclic and post-cyclic performance of a screw pile installed using conventional pitch-matched (AR = 1.0) and over-flighting approaches. The results suggest that, under the one-way cyclic loading investigated, it is possible to reduce displacement accumulation and capacity degradation of the screw pile with over-flighting (reduced AR) installation. Thus adopting installation processes in sand that are contrary to published guidance can result in economic installation and improved cyclic performance for screw piles in tension which could be deployed as anchors for floating wind.

Original language	English
Pages	1218-1224
DOIs	https://doi.org/10.3723/OLMI4175
Publication status	Published - 12 Sept 2023
Event	9th International SUT OSIG Conference “Innovative Geotechnologies for Energy Transition” - Imperical College, London, United Kingdom Duration: 12 Sept 2023 → 14 Sept 2023 https://sut.org/event/osig2023/ http://www.osig2023.com

Conference

Conference	9th International SUT OSIG Conference “Innovative Geotechnologies for Energy Transition”
Country/Territory	United Kingdom
City	London
Period	12/09/23 → 14/09/23
Internet address	https://sut.org/event/osig2023/ http://www.osig2023.com

Keywords

screw pile
Cyclic
Floating offshore wind turbines

ASJC Scopus subject areas

Renewable Energy, Sustainability and the Environment
General Engineering
Civil and Structural Engineering

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.3723/OLMI4175

2 Finished

Development of Screw Anchors for Floating Marine Renewable Energy Systems Arrays Incorporating Anchor Sharing (SAFS) (Joint with University of Liege)
Brown, M. (Investigator), Cerfontaine, B. (Investigator) & Knappett, J. (Investigator)
COMMISSION OF THE EUROPEAN COMMUNITIES
1/08/17 → 31/07/19
Project: Research
Supergen Wind Challenge 2015: Screw Piles for Wind Energy Foundation Systems (Joint with Universities of Durham and Southampton)
Brennan, A. (Investigator), Brown, M. (Investigator) & Knappett, J. (Investigator)
Engineering and Physical Sciences Research Council
26/02/16 → 25/07/19
Project: Research

2 Citations
11 Article
7 Conference contribution
4 Paper
2 Abstract
More
- 1 Book

Centrifuge Modeling of the Installation Advancement Ratio Effect on the Cyclic Response of a Single-Helix Screw Pile for Floating Offshore Wind
Wang, W. (Lead / Corresponding author), Brown, M., Sharif, Y., Davidson, C. & Ciantia, M., 1 Jan 2025, In: Journal of Geotechnical and Geoenvironmental Engineering. 151, 1, 18 p.
Research output: Contribution to journal › Article › peer-review

Open Access
File
103 Downloads (Pure)
The effect of installation advancement ratio on interaction between helices of screw piles for offshore renewable energy
Wang, W. (Lead / Corresponding author), Brown, M., Ciantia, M., Previtali, M., Sharif, Y. & Davidson, C., 15 Jan 2025, In: Ocean Engineering. 316, p. 1-17 17 p., 120000.
Research output: Contribution to journal › Article › peer-review

Open Access
File
19 Downloads (Pure)
Centrifuge modelling of two-way axial cyclic response of screw piles for offshore wind
Wang, W., Brown, M., Sharif, Y., Davidson, C. & Ciantia, M., 2 Oct 2024.
Research output: Contribution to conference › Paper › peer-review

Open Access
File
74 Downloads (Pure)

Screw piles as offshore foundations : Numerical and physical modelling
Al-Baghdadi, T. (Author), Brown, M. (Supervisor) & Knappett, J. (Supervisor), 2018
Student thesis: Doctoral Thesis › Doctor of Philosophy

File

7 Invited talk
1 Examination
1 Keynote

Public engagement talk, Cafe Scientifique: Developing Silent Foundations & Anchors for Offshore Renewable Applications
Brown, M. (Speaker)
9 Jan 2024
Activity: Talk or presentation types › Invited talk
External PhD examiner University of Western Australia, Pierre-Yves Guy Duverneuil: The response of helical anchors under offshore environmental loading
Brown, M. (Examiner)
29 May 2024
Activity: Examination types › Examination
Public Engagement Lecture: Geotechnical modelling for the advancement of offshore renewable energy application
Brown, M. (Speaker)
6 Jun 2023
Activity: Talk or presentation types › Invited talk

University of Dundee Test Data for the EPSRC Supergen Wind Hub Grand Challenges Project: Screw Piles for Wind Energy Foundations (Grant no. EP/N006054/1)
Davidson, C. (Creator), Brown, M. (Creator), Knappett, J. (Creator) & Brennan, A. (Creator), University of Dundee, 23 Feb 2022
DOI: 10.15132/10000176, https://doi.org/10.1680/jgeot.18.P.311 and one more link, https://www.screwpilesforoffshorewind.co.uk/#:~:text=Screw%20(or%20helical)%20piles%20are,good%20tensile%20and%20compressive%20resistance. (show fewer)
Dataset

File
Centrifuge dataset for screw pile installation and uplift
Cerfontaine, B. (Creator), Sharif, Y. (Contributor) & Davidson, C. (Contributor), University of Dundee, May 2021
DOI: 10.15132/10000160
Dataset

File

How we stop floating wind turbines the size of skyscrapers from drifting away
Brown, M. & Knappett, J.
23/05/23
1 Media contribution
Press/Media: Research
Dundee University engineers hope to silence offshore construction
Brown, M.
28/01/21
1 item of Media coverage
Press/Media: Research
Heerema developing Silent Foundation Concepts Technology in coordination with the University of Dundee
Brown, M.
30/06/20
1 item of Media coverage
Press/Media: Research

Institution of Civil Engineers Geotechnical Research Medal 2023
Davidson, C. (Recipient), Brown, M. (Recipient), Cerfontaine, B. (Recipient), Knappett, J. (Recipient), Brennan, A. (Recipient), Al-Baghdadi, T. (Recipient), Augarde, C. (Recipient), Coombs, W. M. (Recipient), Wang, L. (Recipient), Blake, A. (Recipient), Richards, D. (Recipient) & Ball, J. D. (Recipient), 13 Oct 2023
Prize: Prize (including medals and awards)
Institution of Civil Engineers Telford Gold Medal 2024
Cerfontaine, B. (Recipient), Brown, M. (Recipient), Knappett, J. (Recipient), Davidson, C. (Recipient), Sharif, Y. (Recipient), Huisman, M. (Recipient), Ottolini, M. (Recipient) & Ball, J. D. (Recipient), 11 Oct 2024
Prize: Prize (including medals and awards)
Winners of the International Marine Contractors Association Award for Sustainability best-practice
Brown, M. (Recipient), Ottolini, M. (Recipient), Davidson, C. (Recipient), Sharif, Y. (Recipient), Robinson, S. (Recipient), Cerfontaine, B. (Recipient), Ciantia, M. (Recipient) & Huisman, M. (Recipient), 6 Jun 2023
Prize: Other distinction

Cite this

Wang, W., Brown, M., Sharif, Y., & Davidson, C. (2023). The influence of the installation advancement ratio on the cyclic performance of a single-helix pile for floating offshore wind applications. 1218-1224. Paper presented at 9th International SUT OSIG Conference “Innovative Geotechnologies for Energy Transition”, London, United Kingdom. https://doi.org/10.3723/OLMI4175

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abstract = "Upscaling of screw piles has been proposed for offshore use in foundations and anchors. This upscaling can result in a significant increase in vertical installation forces. Subsequent research has shown that this can be reduced and even eliminated by using over-flighting techniques (installation advancement ratio, AR < 1.0), which can also improve the in-service monotonic uplift performance. In this study, centrifuge tests were conducted to investigate the cyclic and post-cyclic performance of a screw pile installed using conventional pitch-matched (AR = 1.0) and over-flighting approaches. The results suggest that, under the one-way cyclic loading investigated, it is possible to reduce displacement accumulation and capacity degradation of the screw pile with over-flighting (reduced AR) installation. Thus adopting installation processes in sand that are contrary to published guidance can result in economic installation and improved cyclic performance for screw piles in tension which could be deployed as anchors for floating wind.",

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Wang, W , Brown, M , Sharif, Y & Davidson, C 2023, 'The influence of the installation advancement ratio on the cyclic performance of a single-helix pile for floating offshore wind applications', Paper presented at 9th International SUT OSIG Conference “Innovative Geotechnologies for Energy Transition”, London, United Kingdom, 12/09/23 - 14/09/23 pp. 1218-1224. https://doi.org/10.3723/OLMI4175

The influence of the installation advancement ratio on the cyclic performance of a single-helix pile for floating offshore wind applications. / Wang, Wei ; Brown, Michael ; Sharif, Yaseen et al.
2023. 1218-1224 Paper presented at 9th International SUT OSIG Conference “Innovative Geotechnologies for Energy Transition”, London, United Kingdom.

Research output: Contribution to conference › Paper › peer-review

TY - CONF

T1 - The influence of the installation advancement ratio on the cyclic performance of a single-helix pile for floating offshore wind applications

AU - Wang, Wei

AU - Brown, Michael

AU - Sharif, Yaseen

AU - Davidson, Craig

PY - 2023/9/12

Y1 - 2023/9/12

N2 - Upscaling of screw piles has been proposed for offshore use in foundations and anchors. This upscaling can result in a significant increase in vertical installation forces. Subsequent research has shown that this can be reduced and even eliminated by using over-flighting techniques (installation advancement ratio, AR < 1.0), which can also improve the in-service monotonic uplift performance. In this study, centrifuge tests were conducted to investigate the cyclic and post-cyclic performance of a screw pile installed using conventional pitch-matched (AR = 1.0) and over-flighting approaches. The results suggest that, under the one-way cyclic loading investigated, it is possible to reduce displacement accumulation and capacity degradation of the screw pile with over-flighting (reduced AR) installation. Thus adopting installation processes in sand that are contrary to published guidance can result in economic installation and improved cyclic performance for screw piles in tension which could be deployed as anchors for floating wind.

AB - Upscaling of screw piles has been proposed for offshore use in foundations and anchors. This upscaling can result in a significant increase in vertical installation forces. Subsequent research has shown that this can be reduced and even eliminated by using over-flighting techniques (installation advancement ratio, AR < 1.0), which can also improve the in-service monotonic uplift performance. In this study, centrifuge tests were conducted to investigate the cyclic and post-cyclic performance of a screw pile installed using conventional pitch-matched (AR = 1.0) and over-flighting approaches. The results suggest that, under the one-way cyclic loading investigated, it is possible to reduce displacement accumulation and capacity degradation of the screw pile with over-flighting (reduced AR) installation. Thus adopting installation processes in sand that are contrary to published guidance can result in economic installation and improved cyclic performance for screw piles in tension which could be deployed as anchors for floating wind.

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KW - Cyclic

KW - Floating offshore wind turbines

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T2 - 9th International SUT OSIG Conference “Innovative Geotechnologies for Energy Transition”

Y2 - 12 September 2023 through 14 September 2023

ER -

The influence of the installation advancement ratio on the cyclic performance of a single-helix pile for floating offshore wind applications

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