## 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

changes with different

net uplift force , J is the effective unit weight of the

The net uplift force depends on the resistance of the

**soil**above and thereforechanges with different

**soils**and**soil**states . ... Line of symmetry where W , is thenet 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 -

system needed to be modelled and the line of symmetry was replaced by a

rolling , rigid boundary . The

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

shows a digital photograph of the

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 10ashows 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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