A submarine pipeline on cohesive seabed was investigated using an integrated surveying system, including a dual-frequency side-scan sonar, a high resolution sub-bottom profiler, and a swath sounder system. By analyzing the pipeline field investigation data, the concepts of `side scour' and `down scour' were proposed for the local scour around submarine pipelines in cohesive beds, which probably result from tidal currents and hurricane-induced currents respectively. The submarine pipeline in the deep water regime (with water depth > 37m) possibly buried itself due to hydrodynamic effects, submerged weight and the side scour. The maximum burial depth of the pipeline was the total effects of that caused by gravity and the side scour respectively, while the later effect corresponds well with the maximum side scour depth.
Local Scour and Self-Burial of a Submarine Pipeline on Cohesive Seabed
International Conference on Pipelines and Trenchless Technology (ICPTT) 2009 ; 2009 ; Shanghai, China
ICPTT 2009 ; 996-1004
2009-09-15
Conference paper
Electronic Resource
English
Scour Around Submarine Pipeline in Clayey
HENRY – Federal Waterways Engineering and Research Institute (BAW) | 2002
|Scour Below Submarine Pipeline Due To Currents
HENRY – Federal Waterways Engineering and Research Institute (BAW) | 2004
|Probabilistic Pipeline Burial Analysis for Protection against Ice Scour
British Library Conference Proceedings | 2008
|Seabed and Iceberg Scour Conditions Affecting a Potential Pipeline Landfall Offshore Labrador
British Library Conference Proceedings | 2010
|Seabed Scour Assessment for Offshore Windfarm
HENRY – Federal Waterways Engineering and Research Institute (BAW) | 2006
|