The University of Southampton
University of Southampton Institutional Repository

Evaluation of elastic stiffness parameters for pipeline-soil interaction

Evaluation of elastic stiffness parameters for pipeline-soil interaction
Evaluation of elastic stiffness parameters for pipeline-soil interaction

This paper focuses on elastic stiffness parameters for axial, horizontal, and vertical motions of a pipeline relative to the seabed, with the aim of expressing these parameters in terms of fundamental elastic properties of the soil. Limited information exists in the literature on the axial elastic response of on-bottom pipelines, particularly for nonhomogeneous soil. Therefore, an approximate analytical approach was developed for axial stiffness, focusing on the case of shear modulus proportional to depth. The solution was then verified through numerical analysis. Further numerical analysis was carried out to obtain relationships for horizontal and vertical elastic stiffnesses of on-bottom pipelines. Finally, relationships among elastic stiffnesses were developed. Here recommendations are made for the selection of proper elastic stiffnesses in all three directions of motion. These recommendations allow consistent and rigorous modeling of elastic pipe-seabed interactions with application to the analysis of pipeline laying, buckling, walking, and on-bottom stability.

Elasticity, Numerical modeling, Offshore engineering, Pipelines, Soil-structure interaction, Theoretical analysis
1090-0241
Guha, Indranil
1ba88002-5df6-4ece-a7a1-312cf699fac0
Randolph, Mark F.
75caa33a-e630-4ae8-84cd-758797bf9633
White, David J.
a986033d-d26d-4419-a3f3-20dc54efce93
Guha, Indranil
1ba88002-5df6-4ece-a7a1-312cf699fac0
Randolph, Mark F.
75caa33a-e630-4ae8-84cd-758797bf9633
White, David J.
a986033d-d26d-4419-a3f3-20dc54efce93

Guha, Indranil, Randolph, Mark F. and White, David J. (2016) Evaluation of elastic stiffness parameters for pipeline-soil interaction. Journal of Geotechnical and Geoenvironmental Engineering, 142 (6), [04016009]. (doi:10.1061/(ASCE)GT.1943-5606.0001466).

Record type: Article

Abstract

This paper focuses on elastic stiffness parameters for axial, horizontal, and vertical motions of a pipeline relative to the seabed, with the aim of expressing these parameters in terms of fundamental elastic properties of the soil. Limited information exists in the literature on the axial elastic response of on-bottom pipelines, particularly for nonhomogeneous soil. Therefore, an approximate analytical approach was developed for axial stiffness, focusing on the case of shear modulus proportional to depth. The solution was then verified through numerical analysis. Further numerical analysis was carried out to obtain relationships for horizontal and vertical elastic stiffnesses of on-bottom pipelines. Finally, relationships among elastic stiffnesses were developed. Here recommendations are made for the selection of proper elastic stiffnesses in all three directions of motion. These recommendations allow consistent and rigorous modeling of elastic pipe-seabed interactions with application to the analysis of pipeline laying, buckling, walking, and on-bottom stability.

This record has no associated files available for download.

More information

Accepted/In Press date: 13 November 2015
e-pub ahead of print date: 22 February 2016
Published date: 1 June 2016
Keywords: Elasticity, Numerical modeling, Offshore engineering, Pipelines, Soil-structure interaction, Theoretical analysis

Identifiers

Local EPrints ID: 419539
URI: http://eprints.soton.ac.uk/id/eprint/419539
ISSN: 1090-0241
PURE UUID: 02637d3e-b583-4a31-b848-68dd01c6029c
ORCID for David J. White: ORCID iD orcid.org/0000-0002-2968-582X

Catalogue record

Date deposited: 13 Apr 2018 16:30
Last modified: 06 Jun 2024 02:00

Export record

Altmetrics

Contributors

Author: Indranil Guha
Author: Mark F. Randolph
Author: David J. White ORCID iD

Download statistics

Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.

View more statistics

Atom RSS 1.0 RSS 2.0

Contact ePrints Soton: eprints@soton.ac.uk

ePrints Soton supports OAI 2.0 with a base URL of http://eprints.soton.ac.uk/cgi/oai2

This repository has been built using EPrints software, developed at the University of Southampton, but available to everyone to use.

We use cookies to ensure that we give you the best experience on our website. If you continue without changing your settings, we will assume that you are happy to receive cookies on the University of Southampton website.

×