Comparison of 1 g and centrifuge modelling of drag anchors with subsurface wireless tracking

Sharif, Yaseen Umar ORCID: https://orcid.org/0000-0002-3620-7500; Brown, Michael John ORCID: https://orcid.org/0000-0001-6770-4836; Knappett, Jonathan Adam ORCID: https://orcid.org/0000-0003-1936-881X; Davidson, Craig ORCID: https://orcid.org/0000-0002-4843-5498; Bird, Robert; Coombs, Will ORCID: https://orcid.org/0000-0003-2099-1676; Augarde, Charles ORCID: https://orcid.org/0000-0002-5576-7853; Carter, Gareth; Macdonald, Catriona; Johnson, Kirstin. 2024 Comparison of 1 g and centrifuge modelling of drag anchors with subsurface wireless tracking. International Journal of Physical Modelling in Geotechnics. 13, pp. 10.1680/jphmg.24.00029

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Official URL: https://doi.org/10.1680/jphmg.24.00029

Abstract/Summary

The kinematic behaviour of drag embedment anchors has become a recent research focus due to the increase in offshore renewable energy devices. This is due to their potential use as an anchoring system for future floating wind applications, in addition to the need to understand their penetration behaviour as a part of the Cable Burial Risk Assessment. Studies on the behaviour of anchors typically consist of field scale or model centrifuge tests, where such facilities are not readily available to all and can result in significant cost. In addition to this, measuring the load–penetration behaviour of an anchor has proven to be a significant challenge, as any contact-based methods are likely to influence the penetration behaviour of the anchor. In this paper, a novel wireless method of recording the inclination of the anchor and calculating the penetration depth is presented. A comparison of the penetration behaviour of a Class F (AC-14) anchor has been made in sand using centrifuge and 1g model scale testing. The results indicate that the 1g testing can match the behaviour of the anchor testing in the centrifuge in terms of both the position of the anchor and its orientation during the dragging event.

Item Type:	Publication - Article
Digital Object Identifier (DOI):	10.1680/jphmg.24.00029
ISSN:	1346-213X
Date made live:	30 Jan 2025 14:36 +0 (UTC)
URI:	https://nora.nerc.ac.uk/id/eprint/538831

Item Type:

Publication - Article

Digital Object Identifier (DOI):

10.1680/jphmg.24.00029

ISSN:

1346-213X

Date made live:

30 Jan 2025 14:36 +0 (UTC)

URI:

https://nora.nerc.ac.uk/id/eprint/538831