2004 Volume 20 Pages 449-454
An advanced finite element analysis for liquefaction process is carried out in order to simulate pore pressure accumulation in seabed around a pipeline due to horizontal cyclic loading. Pore pressure build up response in seabed due to horizontal cyclic loading of a pipeline is numerically investigated through some examples from the viewpoint of the horizontal cyclic displacement and the stiffness of joint element between the pipeline and seabed. The displacement behavior of the pipeline, the effective stress path and the shear stress-strain relationship in the seabed around the pipeline are obtained by this numerical analysis. Pore pressure build up response greatly depends on not only the horizontal cyclic displacement but also the stiffness of joint element.
