Page 89 - Numerical Analysis and Modelling in Geomechanics
P. 89

70 D.S.JENG

































            Figure 3.2 Configuration of the wave-seabed-pipe interaction.




















            Figure 3.3 Finite element meshes in the vicinity of a buried pipeline.

            reveals that the pore pressure around the pipeline is marginally lower around the
            whole pipe for a cross-anisotropic seabed. The major difference between the two
            can be seen directly under the lower half of the pipeline where the pore pressure
            is lowest. It is lowest on the underside of the pipeline because the pore pressure
            decreases with an increase in the soil depth. An isotropic seabed obviously has
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