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RESEARCH PAPERS: Arctic Engineering

Protection of Arctic Submarine Pipelines Against Ice Scour

[+] Author and Article Information
M. A. Nessim, I. J. Jordaan

Det norske Veritas (Canada) Ltd., Calgary, Alberta, Canada

J. Energy Resour. Technol 107(3), 356-361 (Sep 01, 1985) (6 pages) doi:10.1115/1.3231199 History: Received June 24, 1984; Revised April 23, 1985; Online October 22, 2009

Abstract

A decision-theoretic approach to the problem of optimizing strategies for the protection of submarine pipelines against ice scour is presented. The model simultaneously considers twinning, deep trenching, and valve segmentation. The opitmal solution is dependent on the uncertainty regarding the frequency of pipeline damage and the associated consequences. Two sources of uncertainty are considered, namely the rate and the depth of scour. Consequences of pipeline damage are represented by their impact on economy and enviornmental safety. An example is presented and the model is used to check the sensitivity of the optimal solution to different input parameters.

Copyright © 1985 by ASME
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