Proceedings of the ... International Conference on Offshore Mechanics and Arctic Engineering, Volume 7, Parts 4-6American 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 China 54. ABSTRACT The onset of the scour under a fixed pipe and the scour below an oblique pipe have been studied ...
SEABED SCOUR UNDER PIPELINES Ye Mao East China Technical University of Water Resources Nanjing , People's Republic of China 54. ABSTRACT The onset of the scour under a fixed pipe and the scour below an oblique pipe have been studied ...
Page 36
... Scour below a fixed pipe 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 - dimen- sional . The scour process can be split up ...
... Scour below a fixed pipe 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 - dimen- sional . The scour process can be split up ...
Page 38
... scour ability . Later on , when a > 90 ° , its scour ability is weakening with the increase of the oblique angle . For the pipe with a small oblique angle , there are two factors making the scour hole below the pipe shal- lower : First ...
... scour ability . Later on , when a > 90 ° , its scour ability is weakening with the increase of the oblique angle . For the pipe with a small oblique angle , there are two factors making the scour hole below the pipe shal- lower : First ...
Contents
ICE PROPERTIESII | 31 |
Simple Beam Tests on Type S3 Sea | 63 |
ICE DRIFT AND DYNAMICS | 69 |
Copyright | |
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analysis angle approximately Arctic assumed average beam calculated coefficient Cold conducted Conference constant crack creep crushing curves deflection deformation dependence determined developed drift dynamic effect elastic energy Engineering equation estimated experimental experiments factor failure field Figure flexural flow force fracture friction function given grain heat horizontal ice force ice loads ice sheet iceberg impact increase indicates International island layer length limit linear material mean measured Mechanics method motion normal Norton Sound observed obtained Ocean Offshore operating oriented panel parameters plate POSITION presented pressure properties range ratio reference region reinforced relative Report Research response saline samples scale sea ice shape ship shown shows specimen speed spray strain rate strength stress structure surface Table temperature tests thermosyphon thickness tion transfer values vertical wind