Nonlinear Wave-Induced Uplift Force onto Pipelines Buried in Sloping Seabeds

In this paper, a two-dimensional numerical model for wave-seabed-pipeline interaction is developed to examine the wave-induced uplift force onto pipelines buried in sloping seabeds. The Reynolds-averaged Navier stokes equation and poro-elastic are used simulate wave motion seabed response, respectively. Meanwhile, pipeline considered be elastic. Firstly, three laboratory experiments taken verify effectiveness of model. Then, effects characteristics, soil properties parameters on nonlinear analyzed. Finally, an empirical formula predicting under different slope angles proposed. It can found that angle greatly affect wave-caused pore pressure as well pipeline. Moreover, simple method proposed paper facilitate engineering applications.