Projects per year
Abstract
Screw piles or screw anchors are a promising solution to anchor floating offshore renewable energy devices, such as wind turbines or tidal turbines. The installation generates limited noise (driven piles are noisy) and can be undertaken in all soil conditions. Although they are mainly used for their large uplift capacities, screw anchors can also be designed to provide significant lateral resistance. The optimisation of screw anchor design does not rely only on the geotechnical assessment of the uplift capacity based on soil strength, but also on operational (installation requirements) and structural (helix bending, core section stress, limiting steel plate thickness) constraints. This paper develops a methodology for the design optimisation of screw anchors under lateral loading in dense sand, incorporating all of these constraints, based on simplified analytical or semi-analytical approaches. The results show that it is possible to optimise the anchor design, maximising the anchor lateral capacity, whilst minimising the anchor weight. The maximum embedment depth and then the anchor capacity is mainly limited by the maximum torque available during installation and the short-pile to long-pile failure mechanism transition respectively.
Original language | English |
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Title of host publication | Proceedings of the 4th International Symposium on Frontiers in Offshore Geotechnics |
Publisher | Deep Foundations Institute |
Publication status | Published - Sep 2020 |
Event | 4th International Symposium on Frontiers in Offshore Geotechnics (ISFOG 2020). - Austin, Texas, United States Duration: 16 Aug 2020 → 19 Aug 2020 https://www.isfog2020.org/ |
Conference
Conference | 4th International Symposium on Frontiers in Offshore Geotechnics (ISFOG 2020). |
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Abbreviated title | ISFOF2020 |
Country | United States |
City | Texas |
Period | 16/08/20 → 19/08/20 |
Internet address |
Fingerprint Dive into the research topics of 'Optimisation of screw anchor lateral capacity in sand for offshore renewable energy applications'. Together they form a unique fingerprint.
Projects
- 2 Finished
Research output
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Centrifuge Testing of Large Screw Pile Geometries for Offshore Applications
Cerfontaine, B., Davidson, C., Brown, M., Knappett, J. & Sharif, Y., 5 Mar 2021, p. 139-144.Research output: Contribution to conference › Paper › peer-review
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A Finite Element approach for determining the full load-displacement relationship of axially-loaded shallow screw anchors, incorporating installation effects
Cerfontaine, B., Knappett, J., Brown, M., Davidson, C., Al-Baghdadi, T., Sharif, Y., Brennan, A., Augarde, C., Coombs, W. M., Wang, L., Blake, A., Richards, D. J. & Ball, J. D., 30 Jun 2020, In: Canadian Geotechnical Journal.Research output: Contribution to journal › Article › peer-review
Open AccessFile -
Developing screw piles for offshore renewable energy application
Brown, M. J., Davidson, C., Cerfontaine, B., Ciantia, M., Knappett, J. & Brennan, A., 2020, Advances in Offshore Geotechnics: Proceedings of ISOG2019. Haldar, S., Patra, S. & Ghanekar, R. K. (eds.). Singapore: Springer , p. 101-119 19 p. (Lecture Notes in Civil Engineering; vol. 92).Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
Activities
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Using DEM to Investigate the Applicability of Screw Piles as an Alternative Solution for Offshore Wind Turbine Foundations
Michael Brown (Speaker) & Yaseen Sharif (Speaker)
25 Nov 2020Activity: Talk or presentation types › Invited talk
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Keynote lecture First International Workshop on Future Application of Screw Piles (IWFASP 2019) At: IIT Bhubaneshwar, India
Michael Brown (Keynote speaker)
7 Dec 2019Activity: Talk or presentation types › Keynote
File -
1st International Symposium on Screw Piles for Energy Applications (Event)
Michael Brown (Chair)
Dec 2018 → 28 May 2019Activity: Membership types › Membership of committee
Press / Media
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Dundee University engineers hope to silence offshore construction
28/01/21
1 item of Media coverage
Press/Media: Research
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Heerema developing Silent Foundation Concepts Technology in coordination with the University of Dundee
30/06/20
1 item of Media coverage
Press/Media: Research