Solutions for downslope pipeline walking on a seabed with a peaky trilinear soil resistance model
Offshore pipelines used for transporting hydrocarbons are cyclically loaded by great variations of pressure and temperature. These variations can induce axial instability in such pipelines. This instability may cause the pipelines to migrate globally along their length; an effect known as pipeline w...
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ftsouthampton:oai:eprints.soton.ac.uk:450224 2023-12-03T10:14:54+01:00 Solutions for downslope pipeline walking on a seabed with a peaky trilinear soil resistance model Castelo, Adriano White, David Tian, Yinghui 2021-04-01 text https://eprints.soton.ac.uk/450224/ https://eprints.soton.ac.uk/450224/1/Castelo_et_al_2021_AM.pdf en English eng https://eprints.soton.ac.uk/450224/1/Castelo_et_al_2021_AM.pdf Castelo, Adriano, White, David and Tian, Yinghui (2021) Solutions for downslope pipeline walking on a seabed with a peaky trilinear soil resistance model. Journal of Offshore Mechanics and Arctic Engineering, 143 (2), [022101]. (doi:10.1115/1.4048331 <http://dx.doi.org/10.1115/1.4048331>). accepted_manuscript Article PeerReviewed 2021 ftsouthampton https://doi.org/10.1115/1.4048331 2023-11-03T00:01:45Z Offshore pipelines used for transporting hydrocarbons are cyclically loaded by great variations of pressure and temperature. These variations can induce axial instability in such pipelines. This instability may cause the pipelines to migrate globally along their length; an effect known as pipeline walking. Traditional models of pipeline walking have considered the axial soil response as rigid-plastic (RP); however, such behavior does not match observations from physical soil tests. It leads to inaccurate estimates of walking rate (WR) per cycle and over design. In this paper, a trilinear (3L) soil resistance model is used to represent seabed resistance to investigate the behavior of pipeline walking. Different parameters, i.e., shapes and properties of trilinearity (within the peaky soil model type), have been considered leading to a closed-form solution. This solution improves the understanding of the main properties involved in the peaky trilinear soil behavior by providing a set of analytical expressions for pipe walking, which were benchmarked and validated against a set of finite element analyses. Article in Journal/Newspaper Arctic University of Southampton: e-Prints Soton Journal of Offshore Mechanics and Arctic Engineering 143 2 |
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Open Polar |
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University of Southampton: e-Prints Soton |
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ftsouthampton |
language |
English |
description |
Offshore pipelines used for transporting hydrocarbons are cyclically loaded by great variations of pressure and temperature. These variations can induce axial instability in such pipelines. This instability may cause the pipelines to migrate globally along their length; an effect known as pipeline walking. Traditional models of pipeline walking have considered the axial soil response as rigid-plastic (RP); however, such behavior does not match observations from physical soil tests. It leads to inaccurate estimates of walking rate (WR) per cycle and over design. In this paper, a trilinear (3L) soil resistance model is used to represent seabed resistance to investigate the behavior of pipeline walking. Different parameters, i.e., shapes and properties of trilinearity (within the peaky soil model type), have been considered leading to a closed-form solution. This solution improves the understanding of the main properties involved in the peaky trilinear soil behavior by providing a set of analytical expressions for pipe walking, which were benchmarked and validated against a set of finite element analyses. |
format |
Article in Journal/Newspaper |
author |
Castelo, Adriano White, David Tian, Yinghui |
spellingShingle |
Castelo, Adriano White, David Tian, Yinghui Solutions for downslope pipeline walking on a seabed with a peaky trilinear soil resistance model |
author_facet |
Castelo, Adriano White, David Tian, Yinghui |
author_sort |
Castelo, Adriano |
title |
Solutions for downslope pipeline walking on a seabed with a peaky trilinear soil resistance model |
title_short |
Solutions for downslope pipeline walking on a seabed with a peaky trilinear soil resistance model |
title_full |
Solutions for downslope pipeline walking on a seabed with a peaky trilinear soil resistance model |
title_fullStr |
Solutions for downslope pipeline walking on a seabed with a peaky trilinear soil resistance model |
title_full_unstemmed |
Solutions for downslope pipeline walking on a seabed with a peaky trilinear soil resistance model |
title_sort |
solutions for downslope pipeline walking on a seabed with a peaky trilinear soil resistance model |
publishDate |
2021 |
url |
https://eprints.soton.ac.uk/450224/ https://eprints.soton.ac.uk/450224/1/Castelo_et_al_2021_AM.pdf |
genre |
Arctic |
genre_facet |
Arctic |
op_relation |
https://eprints.soton.ac.uk/450224/1/Castelo_et_al_2021_AM.pdf Castelo, Adriano, White, David and Tian, Yinghui (2021) Solutions for downslope pipeline walking on a seabed with a peaky trilinear soil resistance model. Journal of Offshore Mechanics and Arctic Engineering, 143 (2), [022101]. (doi:10.1115/1.4048331 <http://dx.doi.org/10.1115/1.4048331>). |
op_rights |
accepted_manuscript |
op_doi |
https://doi.org/10.1115/1.4048331 |
container_title |
Journal of Offshore Mechanics and Arctic Engineering |
container_volume |
143 |
container_issue |
2 |
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1784261962088054784 |