Modelling of Pipeline and Cable Flotation conditions

Tommaso Bizzotto; Michael Brown; Andrew Brennan; Toby Powell; Howard W. Chandler

doi:10.3723/OSIG17.865

Modelling of Pipeline and Cable Flotation conditions

Tommaso Bizzotto, Michael Brown, Andrew Brennan, Toby Powell, Howard W. Chandler

Civil Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

81 Downloads (Pure)

Abstract

This paper aims to give a new perspective on physical modelling investigation of pipeline/cable flotation in post-jetted fine grained soils. The effect of bed preparation on soil resistance was assessed by performing pipeline pull-out tests in clays at various moisture contents. Two bed preparation methods were compared. The penetration of the pipe/cable through the fluidised soil, drags water lenses into the clay and leaves the soil in a disturbed state that persists and affect the mobilization distance of the pull-out tests. The mobiliza-tion of resistance is found to be dependent on the simulation of pipeline/cable installation process and em-bedment ratio (H/D).

Original language	English
Title of host publication	Offshore Site Investigation and Geotechnics: Smarter Solutions for Future Offshore Developments
Subtitle of host publication	Proceedings of the 8th International Conference, held 12–14 September 2017 at the Royal Geographical Society, London
Publisher	Society for Underwater Technology
Pages	865-871
Number of pages	7
Volume	1-2
ISBN (Print)	9780906940570 (hbk) Volume 1, 9780906940587 (hbk) Volume 2
DOIs	https://doi.org/10.3723/OSIG17.865
Publication status	Published - 12 Sept 2017
Event	8th Offshore Site Investigation and Geotechnics International Conference: ‘Smarter Solutions for Future Offshore Developments’ - Royal Geographical Society, London, United Kingdom Duration: 12 Sept 2017 → 14 Sept 2017 http://www.sutconnects.com/ (Link to conference website)

Conference

Conference	8th Offshore Site Investigation and Geotechnics International Conference
Country/Territory	United Kingdom
City	London
Period	12/09/17 → 14/09/17
Internet address	http://www.sutconnects.com/ (Link to conference website)

Keywords

Pipeline
Flotation
Specific gravity

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.3723/OSIG17.865

Author Accepted ManuscriptAccepted author manuscript, 473 KB

2 Conference contribution

Development of a series of 2D backfill ploughing physical models for pipelines and cables
Bizzotto, T., Brown, M., Brennan, A., Powell, T. & Chandler, H. W., Jul 2018, Physical Modelling in Geotechnics: Proceedings of the 9th International Conference on Physical Modelling in Geotechnics (ICPMG 2018), July 17-20, 2018, London, United Kingdom. McNamara, A., Divall, S. & Goodey, R. (eds.). 1 ed. Taylor & Francis, p. 553-558 4 p.
Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Open Access
File
Toward less conservative flotation criteria for lightweight cables and pipelines
Bizzotto, T., Brown, M. J., Powell, T., Brennan, A. J. & Chandler, H., 2017, Proceedings of the 27th International Ocean and Polar Engineering Conference, ISOPE 2017. Chung, J. S. & Wang, H. H. (eds.). United States: International Society of Offshore and Polar Engineers, Vol. 2. p. 535-540 6 p. (Proceedings of the International Ocean and Polar Engineering Conference; vol. 2).
Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Open Access
File

1 Membership of group

EPSRC Supergen Offshore Renewable Energy (ORE) project, Research Alignment Group (RAG) (External organisation)
Michael Brown (Member)
Oct 2018
Activity: Membership types › Membership of group

Cite this

Bizzotto, T., Brown, M., Brennan, A., Powell, T., & Chandler, H. W. (2017). Modelling of Pipeline and Cable Flotation conditions. In Offshore Site Investigation and Geotechnics: Smarter Solutions for Future Offshore Developments: Proceedings of the 8th International Conference, held 12–14 September 2017 at the Royal Geographical Society, London (Vol. 1-2, pp. 865-871). Society for Underwater Technology. Advance online publication. https://doi.org/10.3723/OSIG17.865

Bizzotto, Tommaso ; Brown, Michael ; Brennan, Andrew et al. / Modelling of Pipeline and Cable Flotation conditions. Offshore Site Investigation and Geotechnics: Smarter Solutions for Future Offshore Developments: Proceedings of the 8th International Conference, held 12–14 September 2017 at the Royal Geographical Society, London. Vol. 1-2 Society for Underwater Technology, 2017. pp. 865-871

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title = "Modelling of Pipeline and Cable Flotation conditions",

abstract = "This paper aims to give a new perspective on physical modelling investigation of pipeline/cable flotation in post-jetted fine grained soils. The effect of bed preparation on soil resistance was assessed by performing pipeline pull-out tests in clays at various moisture contents. Two bed preparation methods were compared. The penetration of the pipe/cable through the fluidised soil, drags water lenses into the clay and leaves the soil in a disturbed state that persists and affect the mobilization distance of the pull-out tests. The mobiliza-tion of resistance is found to be dependent on the simulation of pipeline/cable installation process and em-bedment ratio (H/D).",

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publisher = "Society for Underwater Technology",

note = "8th Offshore Site Investigation and Geotechnics International Conference : {\textquoteleft}Smarter Solutions for Future Offshore Developments{\textquoteright} ; Conference date: 12-09-2017 Through 14-09-2017",

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Bizzotto, T, Brown, M , Brennan, A, Powell, T & Chandler, HW 2017, Modelling of Pipeline and Cable Flotation conditions. in Offshore Site Investigation and Geotechnics: Smarter Solutions for Future Offshore Developments: Proceedings of the 8th International Conference, held 12–14 September 2017 at the Royal Geographical Society, London. vol. 1-2, Society for Underwater Technology, pp. 865-871, 8th Offshore Site Investigation and Geotechnics International Conference, London, United Kingdom, 12/09/17. https://doi.org/10.3723/OSIG17.865

Modelling of Pipeline and Cable Flotation conditions. / Bizzotto, Tommaso; Brown, Michael ; Brennan, Andrew et al.
Offshore Site Investigation and Geotechnics: Smarter Solutions for Future Offshore Developments: Proceedings of the 8th International Conference, held 12–14 September 2017 at the Royal Geographical Society, London. Vol. 1-2 Society for Underwater Technology, 2017. p. 865-871.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

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AU - Powell, Toby

AU - Chandler, Howard W.

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N2 - This paper aims to give a new perspective on physical modelling investigation of pipeline/cable flotation in post-jetted fine grained soils. The effect of bed preparation on soil resistance was assessed by performing pipeline pull-out tests in clays at various moisture contents. Two bed preparation methods were compared. The penetration of the pipe/cable through the fluidised soil, drags water lenses into the clay and leaves the soil in a disturbed state that persists and affect the mobilization distance of the pull-out tests. The mobiliza-tion of resistance is found to be dependent on the simulation of pipeline/cable installation process and em-bedment ratio (H/D).

AB - This paper aims to give a new perspective on physical modelling investigation of pipeline/cable flotation in post-jetted fine grained soils. The effect of bed preparation on soil resistance was assessed by performing pipeline pull-out tests in clays at various moisture contents. Two bed preparation methods were compared. The penetration of the pipe/cable through the fluidised soil, drags water lenses into the clay and leaves the soil in a disturbed state that persists and affect the mobilization distance of the pull-out tests. The mobiliza-tion of resistance is found to be dependent on the simulation of pipeline/cable installation process and em-bedment ratio (H/D).

KW - Pipeline

KW - Flotation

KW - Specific gravity

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DO - 10.3723/OSIG17.865

M3 - Conference contribution

SN - 9780906940570 (hbk) Volume 1

SN - 9780906940587 (hbk) Volume 2

VL - 1-2

SP - 865

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BT - Offshore Site Investigation and Geotechnics: Smarter Solutions for Future Offshore Developments

PB - Society for Underwater Technology

T2 - 8th Offshore Site Investigation and Geotechnics International Conference

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Bizzotto T, Brown M , Brennan A, Powell T, Chandler HW. Modelling of Pipeline and Cable Flotation conditions. In Offshore Site Investigation and Geotechnics: Smarter Solutions for Future Offshore Developments: Proceedings of the 8th International Conference, held 12–14 September 2017 at the Royal Geographical Society, London. Vol. 1-2. Society for Underwater Technology. 2017. p. 865-871 Epub 2017 Jan 1. doi: 10.3723/OSIG17.865

Modelling of Pipeline and Cable Flotation conditions

Abstract

Conference

Keywords

UN SDGs

Access to Document

Fingerprint

Research output

Development of a series of 2D backfill ploughing physical models for pipelines and cables

Toward less conservative flotation criteria for lightweight cables and pipelines

Activities

EPSRC Supergen Offshore Renewable Energy (ORE) project, Research Alignment Group (RAG) (External organisation)

Cite this