CUED Publications database

Seafloor interaction with steel catenary risers

You, J and Biscontin, G and Aubeny, CP (2008) Seafloor interaction with steel catenary risers. In: UNSPECIFIED pp. 110-117..

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Abstract

This paper describes the key features of a seafloor-riser interaction model. The soil is represented in terms of non-linear load-deflection (P- y) relationships, which are also able to account for soil stiffness degradation due to cyclic loading. The analytical framework considers the riser-seafloor interaction problem in terms of a pipe resting on a bed of springs, and requires the iterative solution of a fourth-order ordinary differential equation. A series of simulations is used to illustrate the capabilities of the model. Thanks to the non-linear soil springs with stiffness degradation it is possible to simulate the trench formation process and estimate moments in a riser. Copyright © 2008 by The International Society of Offshore and Polar Engineers (ISOPE).

Item Type: Conference or Workshop Item (UNSPECIFIED)
Uncontrolled Keywords: Finite differences P-y curve Steel catenary riser
Subjects: UNSPECIFIED
Divisions: Div D > Geotechnical and Environmental
Depositing User: Cron Job
Date Deposited: 07 Mar 2014 12:11
Last Modified: 08 Dec 2014 02:19
DOI: