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research-article

Influence of Wave-Induced Uplift Forces on Upheaval Buckling of Pipelines Buried In Sandy Seabeds

[+] Author and Article Information
suresh Kumar

Dept. of Ocean Engineering and Naval Architecture, IIT Kharagpur, West Bengal, India, PIN-721302
dsureshkumar@iitkgp.ac.in

D Achani

Dept. of Ocean Engineering and Naval Architecture, IIT Kharagpur, West Bengal, India, PIN-721302
dasha_iitd@yahoo.com

Mohammed Rubius Sunny

Dept. of Ocean Engineering and Naval Architecture, IIT Kharagpur, West Bengal, India, PIN-721302
sunny@aero.iitkgp.ac.in

Trilochan Sahoo

Dept. of Ocean Engineering and Naval Architecture, IIT Kharagpur, West Bengal, India, PIN-721302
tsahoo@naval.iitkgp.ac.in

1Corresponding author.

ASME doi:10.1115/1.4042097 History: Received August 01, 2018; Revised November 21, 2018

Abstract

The present study focuses on the buckling of pipelines in shallow waters subjected to surface gravity waves. The wave-induced uplift forces on pipelines buried in sandy seabeds are investigated using Biot's consolidation model. Empathetic imperfection model proposed by Taylor and Tran (1994) is used for the study. Thereafter, buckling analyses are performed on the pipeline with the combined temperature and the wave-induced loads. The differences in the critical buckling temperatures for the pipe with consideration of wave loads are analyzed within a range of sea states. The influence of wave loads is found significant for low burial depth ratios.

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