Numerical study of electro-osmotic consolidation of soft clay for pipeline stability
Subsea pipelines are laid directly on seabed with further constraining measures to stabilise it against adverse effect of axial walking, upheaval buckling and lateral buckling. Costly mitigating measures are being employed and the need for further investigation to explore more option is considered....
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ftsheffhu:oai:shura.shu.ac.uk:26282 2023-05-15T14:26:49+02:00 Numerical study of electro-osmotic consolidation of soft clay for pipeline stability Joshua, H.N. Kara, Fuat 2019-06-09 application/pdf https://shura.shu.ac.uk/26282/1/2019%20Joshua%20Numerical%20study%20of%20electro-osmotic%20consolidation%20of%20soft%20clay%20for%20pipeline%20stability.pdf en eng http://shura.shu.ac.uk/26282/ https://shura.shu.ac.uk/26282/1/2019%20Joshua%20Numerical%20study%20of%20electro-osmotic%20consolidation%20of%20soft%20clay%20for%20pipeline%20stability.pdf JOSHUA, H.N. and KARA, Fuat (2019). Numerical study of electro-osmotic consolidation of soft clay for pipeline stability. In: 38th International Conference on Ocean, Offshore and Arctic Engineering (OMAE), June 09-14, Glasgow, UK, Glasgow, UK, 09-14 Jun 2019. (Unpublished) Conference or Workshop Item PeerReviewed 2019 ftsheffhu 2023-03-26T20:30:26Z Subsea pipelines are laid directly on seabed with further constraining measures to stabilise it against adverse effect of axial walking, upheaval buckling and lateral buckling. Costly mitigating measures are being employed and the need for further investigation to explore more option is considered. Stability of soil depends on the soil strength. Increasing the soil strength has been identified as a possible mitigation against pipeline displacement. Electro-osmotic consolidation process is currently being employed to increase soil strength around offshore and onshore structures, but the effect on pipe-soil interaction has not been fully investigated. This aspect received no attention on numerical model or detail experiment in this regard. The present study numerically investigates the effect of pipe-soil interaction using capabilities of commercial ABAQUS finite element software tool on both Electro-Kinetic (EK) treated and untreated soil to determine their behaviours. Results from this study when compared with non-EK treated soil, indicates remarkable developments, as the force required to displace pipeline increases significantly due to EK treatment. Conference Object Arctic SHURA (Sheffield Hallam University Research Archive) |
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SHURA (Sheffield Hallam University Research Archive) |
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ftsheffhu |
language |
English |
description |
Subsea pipelines are laid directly on seabed with further constraining measures to stabilise it against adverse effect of axial walking, upheaval buckling and lateral buckling. Costly mitigating measures are being employed and the need for further investigation to explore more option is considered. Stability of soil depends on the soil strength. Increasing the soil strength has been identified as a possible mitigation against pipeline displacement. Electro-osmotic consolidation process is currently being employed to increase soil strength around offshore and onshore structures, but the effect on pipe-soil interaction has not been fully investigated. This aspect received no attention on numerical model or detail experiment in this regard. The present study numerically investigates the effect of pipe-soil interaction using capabilities of commercial ABAQUS finite element software tool on both Electro-Kinetic (EK) treated and untreated soil to determine their behaviours. Results from this study when compared with non-EK treated soil, indicates remarkable developments, as the force required to displace pipeline increases significantly due to EK treatment. |
format |
Conference Object |
author |
Joshua, H.N. Kara, Fuat |
spellingShingle |
Joshua, H.N. Kara, Fuat Numerical study of electro-osmotic consolidation of soft clay for pipeline stability |
author_facet |
Joshua, H.N. Kara, Fuat |
author_sort |
Joshua, H.N. |
title |
Numerical study of electro-osmotic consolidation of soft clay for pipeline stability |
title_short |
Numerical study of electro-osmotic consolidation of soft clay for pipeline stability |
title_full |
Numerical study of electro-osmotic consolidation of soft clay for pipeline stability |
title_fullStr |
Numerical study of electro-osmotic consolidation of soft clay for pipeline stability |
title_full_unstemmed |
Numerical study of electro-osmotic consolidation of soft clay for pipeline stability |
title_sort |
numerical study of electro-osmotic consolidation of soft clay for pipeline stability |
publishDate |
2019 |
url |
https://shura.shu.ac.uk/26282/1/2019%20Joshua%20Numerical%20study%20of%20electro-osmotic%20consolidation%20of%20soft%20clay%20for%20pipeline%20stability.pdf |
genre |
Arctic |
genre_facet |
Arctic |
op_relation |
http://shura.shu.ac.uk/26282/ https://shura.shu.ac.uk/26282/1/2019%20Joshua%20Numerical%20study%20of%20electro-osmotic%20consolidation%20of%20soft%20clay%20for%20pipeline%20stability.pdf JOSHUA, H.N. and KARA, Fuat (2019). Numerical study of electro-osmotic consolidation of soft clay for pipeline stability. In: 38th International Conference on Ocean, Offshore and Arctic Engineering (OMAE), June 09-14, Glasgow, UK, Glasgow, UK, 09-14 Jun 2019. (Unpublished) |
_version_ |
1766300264555347968 |