Control Method of Subsea Pipeline Lateral Buckling

Abstract:

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Lateral buckling must be considered in exposed HP/HT pipeline design. Snaked-lay method is an effective lateral buckling control method, a new shape of snaked-lay pipeline is presented. Using ANSYS, nonlinear finite element model exposed on even seabed is built. Based on the FEM, sine length and snaked-lay radius are all studied. Sensitivity analyses show that critical buckling is reduced with sine length increasing when lay radius is fixed, but when sine length exceeding a certain value, there is no further reduction in resulting critical buckling force. Maximum moment and critical buckling force are all increased with snaked-lay radius increasing, but for maximum moment when snaked-lay radii exceeding a certain value, the increment is small.

Info:

Periodical:

Edited by:

Dongye Sun, Wen-Pei Sung and Ran Chen

Pages:

5030-5033

DOI:

10.4028/www.scientific.net/AMM.71-78.5030

Citation:

Y. X. Liu "Control Method of Subsea Pipeline Lateral Buckling", Applied Mechanics and Materials, Vols. 71-78, pp. 5030-5033, 2011

Online since:

July 2011

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Price:

$35.00

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