A Review of the Expansion Behavior of Marine Pipelines

J. Ocean Eng. Technol. 2008;22(2):13-19.

Choi Han-Suk,Lee Seung-Keon,Chun Eun-Jee

Dept. of Naval Architecture and Ocean Engineering Pusan National University,Dept. of Naval Architecture and Ocean Engineering Pusan National University,Dept. of Naval Architecture and Ocean Engineering Pusan National University

Keywords: Marine pipeline, Pipeline expansion, Pipe-in-pipe system, Lateral deviation

Abstract

A camprehensive review of the expansion behavior of marine pipelines due to thermal and pressure change is presented based on research work over the last 10 years. The review is organized into five main sections, namely free expansion with uniform temperature, free expansion with temperature gradient, expansion with end restraints, expansion of pipe-in-pipe system, and lateral deviation (snaking). Based on the accumulated knowledge of the interactions between the soil and pipeline behavior, a whole pipeline system can be modeled by an accurate finite element method (FEM). This methodology requires a comprehensive understanding and engineering verification of the expansion behavior of marine pipelines.