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

doi:10.1680/jgeen.22.00245

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

Geo-engineering

Research output: Contribution to journal › Article › Scientific › peer-review

4 Citations (Scopus)

135 Downloads (Pure)

Abstract

This paper presents data from an initial development stage of an 'umbrella anchor' concept. The anchor can be pushed into a 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 a 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 an anchor that has been 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 language	English
Article number	2200245
Pages (from-to)	631-644
Number of pages	14
Journal	Proceedings of the Institution of Civil Engineers: Geotechnical Engineering
Volume	177
Issue number	6
DOIs	https://doi.org/10.1680/jgeen.22.00245
Publication status	Published - 2023

Bibliographical note

Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care
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.

Keywords

anchors & anchorages
buried structures
granular materials
laboratory tests
model tests

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10.1680/jgeen.22.00245

An anchoring system for supporting platforms for wind energy devicesFinal published version, 1.55 MB

Cite this

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title = "An anchoring system for supporting platforms for wind energy devices",

abstract = "This paper presents data from an initial development stage of an 'umbrella anchor' concept. The anchor can be pushed into a 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 a 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 an anchor that has been 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.",

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author = "Vinayagamoorthy Sivakumar and Joseph Fanning and Ken Gavin and Snehasis Tripathy and Aaron Bradshaw and Murray, \{Edward J.\} and Jonathan Black and Shane Donohue",

note = "Green Open Access added to TU Delft Institutional Repository {\textquoteleft}You share, we take care!{\textquoteright} – Taverne project https://www.openaccess.nl/en/you-share-we-take-care 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.",

year = "2023",

doi = "10.1680/jgeen.22.00245",

language = "English",

volume = "177",

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AU - Sivakumar, Vinayagamoorthy

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AU - Gavin, Ken

AU - Tripathy, Snehasis

AU - Bradshaw, Aaron

AU - Murray, Edward J.

AU - Black, Jonathan

AU - Donohue, Shane

N1 - Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care 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.

PY - 2023

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N2 - This paper presents data from an initial development stage of an 'umbrella anchor' concept. The anchor can be pushed into a 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 a 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 an anchor that has been 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.

AB - This paper presents data from an initial development stage of an 'umbrella anchor' concept. The anchor can be pushed into a 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 a 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 an anchor that has been 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.

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KW - buried structures

KW - granular materials

KW - laboratory tests

KW - model tests

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JO - Proceedings of the Institution of Civil Engineers: Geotechnical Engineering

JF - Proceedings of the Institution of Civil Engineers: Geotechnical Engineering

IS - 6

M1 - 2200245

ER -

An anchoring system for supporting platforms for wind energy devices

Abstract

Bibliographical note

Keywords

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