DEM analysis of helix number effects on offshore screw pile installation and in-service performance

Wei Wang; Michael J. Brown; Matteo O. Ciantia; Yaseen U. Sharif; Benjamin Cerfontaine

doi:10.53243/NUMGE2023-217

DEM analysis of helix number effects on offshore screw pile installation and in-service performance

Wei Wang, Michael J. Brown, Matteo O. Ciantia, Yaseen U. Sharif, Benjamin Cerfontaine

Civil Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

156 Downloads (Pure)

Abstract

Screw piles are potentially silent and efficient foundation and anchoring system for offshore renewable energy applications, although upscaling of screw piles for offshore use may require vertical force applied at pile head, which can be impractical or costly. Recent studies show that it is possible to over-flight a single-helix screw pile to reduce and even eliminate the requirement for vertical force whilst enhancing post-installation uplift performance. Screw piles can have more than one helix to improve in-service performance at the price of increased installation vertical force and torque, but how this affects overflighting installation and the performance after over-flighting installation has not been determined. In this study, DEM simulations are undertaken on a single-helix and a two-helix screw pile installed using pitch-matched and over-flighting approaches. The results show over-flighting of the two-helix screw pile can also reduce the installation requirements but may not improve the in-service uplift performance. In addition, for pitch-matched screw piles, increasing helix number can improve both compressive and tensile performance post-installation. For over-flighted screw pile, however, adding helices can result in loss of uplift capacity.

Original language	English
Title of host publication	Proceedings of the 10th European Conference on Numerical Methods in Geotechnical Engineering
Editors	Lidija Zdravkovic, Stavroula Kontoe, Aikaterini Tsiampousi, David Taborda
Place of Publication	London
Publisher	International Society for Soil Mechanics and Geotechnical Engineering
Number of pages	6
DOIs	https://doi.org/10.53243/NUMGE2023-217
Publication status	Published - 26 Jun 2023

Keywords

Screw anchor
screw pile
multiple helix
sand
offshore engineering
Offshore energy
Discrete Element Method
Offshore geotechnics
Installation effects

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

10.53243/NUMGE2023-217

Final Published Version
Open acces I think according to cover and ISSMGE put them all on their website?
Final published version, 718 KB

1 Active
2 Finished

Accelerated Development Of Screw Anchors For Floating Wind (Joint with Industrial Partner Geowynd)
Brown, M. (Investigator)
1/09/22 → 1/03/26
Project: Research
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

11 Article
6 Conference contribution
4 Paper
1 Abstract

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
75 Downloads (Pure)
Physical modelling of deep screw piles in medium-dense sands for floating wind applications
Jawid, T., Brown, M., Davidson, C., Sharif, Y., Wang, W., Shepherd, C., Buckley, R. & Whyte, S., Oct 2024, Proceedings of the 5th ECPMG 2024: 5th European Conference on Modelling in Geotechnics. International Society for Soil Mechanics and Geotechnical Engineering, 7 p.
Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Open Access
File
82 Downloads (Pure)
3D numerical analysis of screw pile subjected to axial compressive and lateral load
Kumar, P. V. P., Patra, S., Haldar, S., Brown, M. J., Knappett, J. A. & Sharif, Y. U., 1 Jan 2023, Soil Dynamics, Earthquake and Computational Geotechnical Engineering : Proceedings of the Indian Geotechnical Conference 2021 Volume 5. Muthukkumaran, K., Ayothiraman, R. & Kolathayar, S. (eds.). Singapore: Springer , Vol. 5. p. 75-85 11 p. (Lecture Notes in Civil Engineering; vol. 300).
Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Open Access
File
122 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 Participation in workshop, seminar, course
1 Examination
1 Membership of committee
More
- 1 Keynote

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 talk, Cafe Scientifique: Developing Silent Foundations & Anchors for Offshore Renewable Applications
Brown, M. (Speaker)
9 Jan 2024
Activity: Talk or presentation types › Invited talk
Public Engagement: Tayport Episcopalian Church Talk, Sea Sunday: Local Offshore Renewable Energy Investigation and Development
Brown, M. (Speaker) & Ciantia, M. (Speaker)
9 Jul 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

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
Heerema Developing Silent Foundations
Brown, M.
22/01/21
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. J., Ciantia, M. O., Sharif, Y. U., & Cerfontaine, B. (2023). DEM analysis of helix number effects on offshore screw pile installation and in-service performance. In L. Zdravkovic, S. Kontoe, A. Tsiampousi, & D. Taborda (Eds.), Proceedings of the 10th European Conference on Numerical Methods in Geotechnical Engineering Article 217 International Society for Soil Mechanics and Geotechnical Engineering. https://doi.org/10.53243/NUMGE2023-217

Wang, Wei ; Brown, Michael J. ; Ciantia, Matteo O. et al. / DEM analysis of helix number effects on offshore screw pile installation and in-service performance. Proceedings of the 10th European Conference on Numerical Methods in Geotechnical Engineering. editor / Lidija Zdravkovic ; Stavroula Kontoe ; Aikaterini Tsiampousi ; David Taborda. London : International Society for Soil Mechanics and Geotechnical Engineering, 2023.

@inproceedings{4f12282e71d44bd49b01f6c2e833bcfa,

title = "DEM analysis of helix number effects on offshore screw pile installation and in-service performance",

abstract = "Screw piles are potentially silent and efficient foundation and anchoring system for offshore renewable energy applications, although upscaling of screw piles for offshore use may require vertical force applied at pile head, which can be impractical or costly. Recent studies show that it is possible to over-flight a single-helix screw pile to reduce and even eliminate the requirement for vertical force whilst enhancing post-installation uplift performance. Screw piles can have more than one helix to improve in-service performance at the price of increased installation vertical force and torque, but how this affects overflighting installation and the performance after over-flighting installation has not been determined. In this study, DEM simulations are undertaken on a single-helix and a two-helix screw pile installed using pitch-matched and over-flighting approaches. The results show over-flighting of the two-helix screw pile can also reduce the installation requirements but may not improve the in-service uplift performance. In addition, for pitch-matched screw piles, increasing helix number can improve both compressive and tensile performance post-installation. For over-flighted screw pile, however, adding helices can result in loss of uplift capacity.",

keywords = "Screw anchor, screw pile, multiple helix, sand, offshore engineering, Offshore energy, Discrete Element Method, Offshore geotechnics, Installation effects",

author = "Wei Wang and Brown, {Michael J.} and Ciantia, {Matteo O.} and Sharif, {Yaseen U.} and Benjamin Cerfontaine",

year = "2023",

month = jun,

day = "26",

doi = "10.53243/NUMGE2023-217",

language = "English",

editor = "Lidija Zdravkovic and Stavroula Kontoe and Aikaterini Tsiampousi and David Taborda",

booktitle = "Proceedings of the 10th European Conference on Numerical Methods in Geotechnical Engineering",

publisher = "International Society for Soil Mechanics and Geotechnical Engineering",

address = "United States",

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Wang, W , Brown, MJ , Ciantia, MO, Sharif, YU & Cerfontaine, B 2023, DEM analysis of helix number effects on offshore screw pile installation and in-service performance. in L Zdravkovic, S Kontoe, A Tsiampousi & D Taborda (eds), Proceedings of the 10th European Conference on Numerical Methods in Geotechnical Engineering., 217, International Society for Soil Mechanics and Geotechnical Engineering, London. https://doi.org/10.53243/NUMGE2023-217

DEM analysis of helix number effects on offshore screw pile installation and in-service performance. / Wang, Wei ; Brown, Michael J.; Ciantia, Matteo O. et al.
Proceedings of the 10th European Conference on Numerical Methods in Geotechnical Engineering. ed. / Lidija Zdravkovic; Stavroula Kontoe; Aikaterini Tsiampousi; David Taborda. London: International Society for Soil Mechanics and Geotechnical Engineering, 2023. 217.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

TY - GEN

T1 - DEM analysis of helix number effects on offshore screw pile installation and in-service performance

AU - Wang, Wei

AU - Brown, Michael J.

AU - Ciantia, Matteo O.

AU - Sharif, Yaseen U.

AU - Cerfontaine, Benjamin

PY - 2023/6/26

Y1 - 2023/6/26

N2 - Screw piles are potentially silent and efficient foundation and anchoring system for offshore renewable energy applications, although upscaling of screw piles for offshore use may require vertical force applied at pile head, which can be impractical or costly. Recent studies show that it is possible to over-flight a single-helix screw pile to reduce and even eliminate the requirement for vertical force whilst enhancing post-installation uplift performance. Screw piles can have more than one helix to improve in-service performance at the price of increased installation vertical force and torque, but how this affects overflighting installation and the performance after over-flighting installation has not been determined. In this study, DEM simulations are undertaken on a single-helix and a two-helix screw pile installed using pitch-matched and over-flighting approaches. The results show over-flighting of the two-helix screw pile can also reduce the installation requirements but may not improve the in-service uplift performance. In addition, for pitch-matched screw piles, increasing helix number can improve both compressive and tensile performance post-installation. For over-flighted screw pile, however, adding helices can result in loss of uplift capacity.

AB - Screw piles are potentially silent and efficient foundation and anchoring system for offshore renewable energy applications, although upscaling of screw piles for offshore use may require vertical force applied at pile head, which can be impractical or costly. Recent studies show that it is possible to over-flight a single-helix screw pile to reduce and even eliminate the requirement for vertical force whilst enhancing post-installation uplift performance. Screw piles can have more than one helix to improve in-service performance at the price of increased installation vertical force and torque, but how this affects overflighting installation and the performance after over-flighting installation has not been determined. In this study, DEM simulations are undertaken on a single-helix and a two-helix screw pile installed using pitch-matched and over-flighting approaches. The results show over-flighting of the two-helix screw pile can also reduce the installation requirements but may not improve the in-service uplift performance. In addition, for pitch-matched screw piles, increasing helix number can improve both compressive and tensile performance post-installation. For over-flighted screw pile, however, adding helices can result in loss of uplift capacity.

KW - Screw anchor

KW - screw pile

KW - multiple helix

KW - sand

KW - offshore engineering

KW - Offshore energy

KW - Discrete Element Method

KW - Offshore geotechnics

KW - Installation effects

U2 - 10.53243/NUMGE2023-217

DO - 10.53243/NUMGE2023-217

M3 - Conference contribution

BT - Proceedings of the 10th European Conference on Numerical Methods in Geotechnical Engineering

A2 - Zdravkovic, Lidija

A2 - Kontoe, Stavroula

A2 - Tsiampousi, Aikaterini

A2 - Taborda, David

PB - International Society for Soil Mechanics and Geotechnical Engineering

CY - London

ER -

Wang W , Brown MJ , Ciantia MO, Sharif YU, Cerfontaine B. DEM analysis of helix number effects on offshore screw pile installation and in-service performance. In Zdravkovic L, Kontoe S, Tsiampousi A, Taborda D, editors, Proceedings of the 10th European Conference on Numerical Methods in Geotechnical Engineering. London: International Society for Soil Mechanics and Geotechnical Engineering. 2023. 217 doi: 10.53243/NUMGE2023-217

DEM analysis of helix number effects on offshore screw pile installation and in-service performance

Abstract

Keywords

ASJC Scopus subject areas

UN SDGs

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