Drained breakout resistance of a pipeline on a mobile seabed

Joe Tom, David White, Scott Draper

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

Abstract

© 2015 by ASME. This paper describes a numerical study investigating the effect of sediment transport and associated changes in the local seabed profile on the drained breakout resistance of subsea pipelines. Limit analyses were conducted assessing the breakout response of a pipeline placed on a cohesionless Mohr-Coulomb material considering different seabed profiles around the pipeline. These profiles were determined from surveys of a pipeline on an erodible seabed. The parametric study shows the relative importance of various parameters describing the seabed profile geometry, including the local pipe embedment and the adjacent slope of the seabed. Significant changes in drained resistance occur due to changes in local pipeline embedment resulting from scour induced pipeline lowering and/or sedimentation. The seabed slope local to the pipeline also has a strong impact. The assumption of a flat seabed can lead to predicted seabed resistance that differs significantly from the actual value, accounting for a more natural seabed profile.
Original languageEnglish
Title of host publicationProceedings of the International Conference on Offshore Mechanics and Arctic Engineering - OMAE
PublisherASME International
Pages1-10
Volume5B
ISBN (Print)9780791856529
DOIs
Publication statusPublished - 2015
EventDrained breakout resistance of a pipeline on a mobile seabed - St Johns, Canada
Duration: 1 Jan 2015 → …

Conference

ConferenceDrained breakout resistance of a pipeline on a mobile seabed
Period1/01/15 → …

Fingerprint Dive into the research topics of 'Drained breakout resistance of a pipeline on a mobile seabed'. Together they form a unique fingerprint.

Cite this