Improving seabed cable plough performance for offshore renewable energy

S. Robinson, M. J. Brown, A. J. Brennan, Michael Cortis, Charles E. Augarde, William M. Coombs

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Citations (Scopus)
146 Downloads (Pure)

Abstract

Seabed ploughing plays an important part in providing protection to subsea cables that connect offshore renewables, and the process represents a significant portion of the overall installation cost. Current models for predicting the required tow forces for seabed ploughs are based on semi-empirical methods as conventional geotechnical finite element analysis is not suited to modelling this process due to the large deformations involved. The project described in this paper aims to develop a new material point method numerical modelling software to predict seabed plough response, which will enable new designs to be optimised. This will be validated against physical modelling, a part of which is the focus of this paper. This includes both 1 g and centrifuge testing as well as new techniques such as 3D soil surface scanning. The testing also provides insights into share geometry influences on plough behaviour, and will allow improvements to existing empirical models.

Original languageEnglish
Title of host publicationProgress in Renewable Energies Offshore
Subtitle of host publicationProceedings of the 2nd International Conference on Renewable Energies Offshore (RENEW2016)
EditorsC Guedes Soares
PublisherCRC Press/Balkema
Pages413-420
Number of pages8
ISBN (Electronic)9781315229256
ISBN (Print)9781138626270
Publication statusPublished - 13 Oct 2016
Event2nd International Conference on Renewable Energies Offshore, RENEW 2016 - Lisbon, Portugal
Duration: 24 Oct 201626 Oct 2016

Conference

Conference2nd International Conference on Renewable Energies Offshore, RENEW 2016
CountryPortugal
CityLisbon
Period24/10/1626/10/16

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