Proceedings of the ... International Conference on Offshore Mechanics and Arctic Engineering, Volume 9, Part 5American Society of Mechanical Engineers, 1990 - Arctic regions |
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Page 185
... depth and are usually underlain by a more competent material ( stiff clays or sands ) . Also , at a depth of about 6m corresponding to the proposed pipeline burial in the Beaufort Sea , the soil generally consists of stiff clay or sand ...
... depth and are usually underlain by a more competent material ( stiff clays or sands ) . Also , at a depth of about 6m corresponding to the proposed pipeline burial in the Beaufort Sea , the soil generally consists of stiff clay or sand ...
Page 186
... depth profiles . Plane strain conditions are assumed to apply , which is reasonable given that observed scours are generally wide in comparison to their depth . The effect of spoil pile development upon scour forces is treated as a ...
... depth profiles . Plane strain conditions are assumed to apply , which is reasonable given that observed scours are generally wide in comparison to their depth . The effect of spoil pile development upon scour forces is treated as a ...
Page 187
... depth of 26.7 m and extends approximately 13 km to a water depth of 20.5 m . Over the first 10 km of travel , the scour is straight and increases in width from less than 10 m to a maximum width of 80 m . Water depth changes from 26.7 m ...
... depth of 26.7 m and extends approximately 13 km to a water depth of 20.5 m . Over the first 10 km of travel , the scour is straight and increases in width from less than 10 m to a maximum width of 80 m . Water depth changes from 26.7 m ...
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addition analysis applied approach assessment assumed bending calculations caused considered CONTINUE corrosion crack damage deformation depth described diameter direction displacement distribution effect energy Engineering ensemble equations factors failure field Figure flow force fracture function given hole included increase initial installation internal layer length limit load material maximum mean measured mechanical method mode movement obtained occurred Offshore operation parameters pipe pipeline plastic plate platform position predicted presented pressure probability problem procedure properties radial range reduced relative reliability resistance response safety scaling scour seabed shown shows simulated soil solution span stability steel strain strength stress structure subsea surface Table term thickness toughness tracers tube uncertainty values valve variables wall wave weight weld