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

Authors: Sharif, Yaseen Umar; Brown, Michael John; Knappett, Jonathan Adam; Davidson, Craig; Bird, Robert; Coombs, Will; Augarde, Charles; +3 Authors

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

Abstract

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.

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Keywords

/dk/atira/pure/subjectarea/asjc/2100/2105, Cable Burial Risk Assessment, /dk/atira/pure/subjectarea/asjc/2200/2205, Sustainability and the Environment, 550, 330, anchor tracking, sand, drag embedment anchors, name=Renewable Energy, name=Civil and Structural Engineering, centrifuge modeling

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
1
Average
Average
Average
Green