Sensitivity Analysis on Key Parameters of Deep-sea Pipeline with Sleepers

Abstract

The thermal additional stress generated in the pipeline heating process cause large lateral global buckling deformation. Excessive lateral displacement will harm the safety of pipeline systems. For controlling the lateral buckling, the sleepers are laid under the deep-sea pipelines to in practice. This paper analyzed the sleeper treatment method and proposed key parameter sensitivity analysis. Different sleeper’s height, initial pipeline offset and the distance between sleepers were simulated.