Improving the performance of offshore pipeline ploughs using vibration

A. Zefirova, M. J. Brown, A. J. Brennan, S. Boyes

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

3 Citations (Scopus)

Abstract

Pipelines are often buried in the seabed using ploughs to protect against man-made and natural hazards. The depth of burial is influenced by the soil conditions and plough progress rates required to meet contract deadlines.
Plough progress rates may be a function of the towing vessel capabilities. Being able to reduce plough tow forces, increase the rate of progress or increase ploughing depths without significant increases in tow forces may offer considerable commercial advantages to the ploughing industry. One possible means of improving pipeline plough performance is through inducing vibration in the plough and surrounding ground. This paper reports the findings of a pilot study looking at the effects of plough vibration on tow forces and plough depth. The results show that vibration at 77–102Hz resulted in increased plough depth by up to 38% in dense sand, with limited average increases in tow forces of –6%.
Original languageEnglish
Title of host publicationProceedings of the 7th International Conference on Offshore Site Investigation and Geotechnics
Subtitle of host publicationIntegrated Geotechnologies - Present and Future
PublisherSociety for Underwater Technology
Pages395-401
Number of pages7
ISBN (Print)9780906940532
Publication statusPublished - 2012
Event7th International Conference on Offshore Site Investigation and Geotechnics: Integrated Geotechnologies – Present and Future - Royal Geographical Society, London, United Kingdom
Duration: 12 Sep 201214 Sep 2012

Conference

Conference7th International Conference on Offshore Site Investigation and Geotechnics
CountryUnited Kingdom
CityLondon
Period12/09/1214/09/12

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