The Open Ocean Engineering Journal

2012, 5 : 15-20
Published online 2012 July 27. DOI: 10.2174/1874835X01205010015
Publisher ID: TOOEJ-5-15

The Numerical Simulation of Pipe/Soil Interaction Under Wave Loadings

Ren Yanrong and Liu Yubiao
Science School, Beijing Institute of Civil Engineering and Architecture, Beijing 100044,China.

ABSTRACT

The on-bottom stability of submarine pipeline is a key problem of submarine pipeline design.The key issue is to simulate the interaction among wave,pipe and soil. In this paper, the constitutive models of soil, such as nonlinear elastic, porous elastic and Ramberg-Osgood models are adopted respectively, and the pipe/soil interaction has been analyzed by the common finite element software ABAQUS program. The contact surfaces have been established. The factors such as contact effect,frictional coefficient between pipe and soil ,pipe's penetration, the impact of yielding stress are considered. Also, the results show that the computation of the pipe/soil interaction is feasible and may provide a helpful tool for the engineering practice of pipeline on-bottom stability design.

Keywords:

Submarine pipeline, sandy seabed, pipe/soil interaction.