An anchoring system for supporting platforms for wind energy devices

Vinayagamoorthy Sivakumar*, Joseph Fanning, Ken Gavin, Snehasis Tripathy, Aaron Bradshaw, Edward J. Murray, Jonathan Black, Shane Donohue

*Corresponding author for this work

Research output: Contribution to journalArticleScientificpeer-review

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This paper presents data from an initial development stage of an 'umbrella anchor' concept. The anchor can be pushed into sand deposit in a folded arrangement to reduce installation loads. When a pull-out load is applied to the mooring line, the anchor deploys to create a large embedded plate anchor. Physical modelling was carried out in saturated sand-bed with the anchor installed at depths of up to 1.6 m and loaded vertically. During installation, liquefaction was generated at the tip of the anchor to reduce the penetration resistance. This enabled the anchor to be installed quickly and accurately to a target depth. The anchor could provide pull-out resistances comparable to anchor that was wished-in-place at similar depths. The observed behaviour provided encouraging preliminary results and suggests that, with further development and analysis, the concept could potentially be used for commercial applications.

Original languageEnglish
Article number2200245
Number of pages15
JournalProceedings of the Institution of Civil Engineers: Geotechnical Engineering
Publication statusPublished - 2023

Bibliographical note

Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project
Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.


  • anchors & anchorages
  • buried structures
  • granular materials
  • laboratory tests
  • model tests


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