Proceedings of the ... International Conference on Offshore Mechanics and Arctic Engineering, Volume 5American Society of Mechanical Engineers, 1988 - Arctic regions |
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Page 33
SEABED SCOUR UNDER PIPELINES Ye Mao East China Technical University of Water Resources Nanjing , People's Republic of ... The onset of the scour under a fixed pipe and the scour below an oblique pipe have been studied experimently .
SEABED SCOUR UNDER PIPELINES Ye Mao East China Technical University of Water Resources Nanjing , People's Republic of ... The onset of the scour under a fixed pipe and the scour below an oblique pipe have been studied experimently .
Page 36
Scour below a fixed pipe Smax D d = 90 ° = 30 ° After onset , scour hole develops quickly both along pipe axis and in the flow direction . Soon , the scour process under a pipeline can be considered as two - dimensional .
Scour below a fixed pipe Smax D d = 90 ° = 30 ° After onset , scour hole develops quickly both along pipe axis and in the flow direction . Soon , the scour process under a pipeline can be considered as two - dimensional .
Page 341
Ws = W ; seasons on The calculation was therefore ( a ) Single Scour season Wo ENVIRONMENTAL SCOUR PARAMETERS ta Di Ro Typical representations of seabottom scour marks are illustrated in Fig . 5 . The presence of multiple scours is a ...
Ws = W ; seasons on The calculation was therefore ( a ) Single Scour season Wo ENVIRONMENTAL SCOUR PARAMETERS ta Di Ro Typical representations of seabottom scour marks are illustrated in Fig . 5 . The presence of multiple scours is a ...
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Contents
Seabed Scour Under Pipelines | 33 |
Flow Around and Forces on a Pipeline Near a Scoured | 39 |
MEASUREMENTS OF PIPELINE LEAK DETECTION | 55 |
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analysis application approach Arctic areas assumed axial bending bottom boundary buckling calculated carried caused coefficient combined compared compression considered corrosion cost cylinder deformation depth detection determined developed diameter direction displacement drag effect element Engineering equation example experimental experiments field Figure flow force frequency function given ground heat increase installation International leak length lift lift force limit liquid load material maximum mean measured Mechanics metal method monitoring movement normal obtained offshore operating parameters performed period phase pipe pipeline position predicted present pressure problem procedure properties range ratio regular waves relatively response scour seabed shown shows simulated soil solution span steel strain stress structural surface Table technique temperature thickness tion values variation velocity wall wave welding zone
Bibliographic information
| Title | Proceedings of the ... International Conference on Offshore Mechanics and Arctic Engineering, Volume 5 |
| Contributor | American Society of Mechanical Engineers. Offshore Mechanics and Arctic Engineering Division |
| Publisher | American Society of Mechanical Engineers, 1988 |
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