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 34
... pipe ) , its surface covered by rubber can be considered hydraulically smooth . As shown in Fig.2 , the pipe was fixed at the section 8 m downstream the inlet of the bed . 35 cm Pipe from extended to 12 m long . The value of was 0.098 ...
... pipe ) , its surface covered by rubber can be considered hydraulically smooth . As shown in Fig.2 , the pipe was fixed at the section 8 m downstream the inlet of the bed . 35 cm Pipe from extended to 12 m long . The value of was 0.098 ...
Page 245
... pipe can take place for foundation imper- fections above a certain critical size . Thus , a pipe- line which originally was installed with only founda- tion imperfections can , upon start of production , un- dergo local plastification ...
... pipe can take place for foundation imper- fections above a certain critical size . Thus , a pipe- line which originally was installed with only founda- tion imperfections can , upon start of production , un- dergo local plastification ...
Page 247
... pipe can be determined utilizing a sub - bottom profiler survey , provided that the survey crossings are carried out with sufficient frequency to resolve the pipe undulations . As a governing rule the pipe should be crossed at intervals ...
... pipe can be determined utilizing a sub - bottom profiler survey , provided that the survey crossings are carried out with sufficient frequency to resolve the pipe undulations . As a governing rule the pipe should be crossed at intervals ...
Contents
Model Tests | 3 |
B Bryndum V Jacobsen and D T Tsahalis 9 | 21 |
Scour Under Pipelines | 33 |
Copyright | |
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Common terms and phrases
acoustic velocity analysis Arctic Engineering axial behaviour bending bottom boundary layer buckling cable calculated clamp Cobia compression corrosion crack cylinder deflection deformation developed dew point diameter drag drag coefficient effect elastic equation experimental field Figure finite element flow force coefficients free span frequency friction friction welding function hoop stress horizontal Hydraulic hydrodynamic hydrodynamic forces in-line installation irregular waves length lift coefficient lift force liquid load maximum measured mechanical method monitoring movement nodal analysis operating parameters phase pipe displacement pipe material pipeline predicted pressure procedure ratio response riser roughness SCADA scour sea bed sea floor seabed shown simulated slug soil steady current steel storm strain strain gauges stress structural submarine pipelines surface Technology temperature tion Turning Bands underwater values variation vertical vortex shedding water depth welding zone