Proceedings of the ... International Conference on Offshore Mechanics and Arctic Engineering, Volume 4American Society of Mechanical Engineers, 2001 - Arctic regions |
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Page 266
The net uplift force depends on the resistance of the soil above and therefore
changes with different soils and soil states . ... Line of symmetry where W , is the
net uplift force , J is the effective unit weight of the soil and L is the pipe length .
The net uplift force depends on the resistance of the soil above and therefore
changes with different soils and soil states . ... Line of symmetry where W , is the
net uplift force , J is the effective unit weight of the soil and L is the pipe length .
Page 267
There is a line of symmetry in the centre of the pipe , so only half of the pipe - soil
system needed to be modelled and the line of symmetry was replaced by a
rolling , rigid boundary . The soil was modelled using 525 linear strain triangles .
There is a line of symmetry in the centre of the pipe , so only half of the pipe - soil
system needed to be modelled and the line of symmetry was replaced by a
rolling , rigid boundary . The soil was modelled using 525 linear strain triangles .
Page 271
3 Observed soil displacement mechanisms 5 . 3 . 1 Loose sand Figure 10a
shows a digital photograph of the soil model after a pipe displacement of S / D =
1 . 3 through loose sand in the laboratory ( test 1 ) . The initial embedment ratio ,
H / D ...
3 Observed soil displacement mechanisms 5 . 3 . 1 Loose sand Figure 10a
shows a digital photograph of the soil model after a pipe displacement of S / D =
1 . 3 through loose sand in the laboratory ( test 1 ) . The initial embedment ratio ,
H / D ...
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Contents
POLAR AND ARCTIC | 1 |
Analysis of Ice Force Spectra in Physical Experiments | 7 |
Progressive Damage Mechanism for Ductile Failure for Polycrystalline Ice and | 15 |
Copyright | |
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analysis applied approach Arctic assessment axial bending buckle cable calculated carrier cause coefficient collapse combination compared Conference considered corrosion cost crack damage defect dependent depth detailed determined developed diameter displacement distribution dynamic effect element Engineering equation experimental factor failure field Figure flexible flow flowline fluid force foundation fracture function geometry given grooves heat increase initial inspection installation internal lateral layer length limit liner load material maximum measured Mechanics method observed obtained occur Offshore operation parameters performed phase pipe pipeline position predicted presented pressure production range ratio reduced relation resistance respectively response riser risk sand seabed shown shows simulation soil solution specimens steel strain strength stress structure surface Table temperature tests thermal thickness values wave wrinkle