Contribution of Axial Soil Resistance in Buckle Initiation of the HPHT Pipelines on Sleepers

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The objective of this paper is to assess the impact of soil axial resistance on initiation of the buckles on sleepers. It also covers the effects of history of pressure and temperature increase on effective axial force as well as the incorporation of external pressure in the Finite Element (FE) models. This is carried out for 6″, 8″, 10″ and 12″ pipelines laying on sleepers with different heights for a range of axial soil frictions and mobilisations. Knowing the sensitivity of buckle initiation to soil parameters can help in simplifying engineering analysis by avoiding repetitive simulations for parameters with less importance.

To carry out the above, a series of FE models including normal and bi-linear axial contacts between pipeline and sleeper / seabed were built in Abaqus FE package and at the point of initiation of the buckles, the effective axial force was extracted by a Python script. FE models were validated by comparison of the simulation results with analytical solutions and experimental results from published literature.
Original languageEnglish
Title of host publicationProceedings of the ASME 2016 35th International Conference on Ocean, Offshore and Arctic Engineering OMAE2016
Subtitle of host publicationPipelines, Risers, and Subsea Systems
PublisherASME
Pages1-7
Number of pages7
Volume5
ISBN (Print)9780791849965
DOIs
Publication statusPublished - 2016
EventASME 2016 35th International Conference on Ocean, Offshore and Arctic Engineering - Busan, Korea, Democratic People's Republic of
Duration: 19 Jun 201624 Jun 2016

Conference

ConferenceASME 2016 35th International Conference on Ocean, Offshore and Arctic Engineering
CountryKorea, Democratic People's Republic of
CityBusan
Period19/06/1624/06/16

Fingerprint

Pipelines
Soils
Pipeline laying
Friction
Temperature

Keywords

  • earth resistance
  • pipelines

Cite this

Vosooghi, N., Ivanovic, A., & Sriramula, S. (2016). Contribution of Axial Soil Resistance in Buckle Initiation of the HPHT Pipelines on Sleepers. In Proceedings of the ASME 2016 35th International Conference on Ocean, Offshore and Arctic Engineering OMAE2016: Pipelines, Risers, and Subsea Systems (Vol. 5, pp. 1-7). [V005T04A027] ASME. https://doi.org/10.1115/OMAE2016-54137

Contribution of Axial Soil Resistance in Buckle Initiation of the HPHT Pipelines on Sleepers. / Vosooghi, Navid; Ivanovic, Ana; Sriramula, Srinivas.

Proceedings of the ASME 2016 35th International Conference on Ocean, Offshore and Arctic Engineering OMAE2016: Pipelines, Risers, and Subsea Systems. Vol. 5 ASME, 2016. p. 1-7 V005T04A027.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Vosooghi, N, Ivanovic, A & Sriramula, S 2016, Contribution of Axial Soil Resistance in Buckle Initiation of the HPHT Pipelines on Sleepers. in Proceedings of the ASME 2016 35th International Conference on Ocean, Offshore and Arctic Engineering OMAE2016: Pipelines, Risers, and Subsea Systems. vol. 5, V005T04A027, ASME, pp. 1-7, ASME 2016 35th International Conference on Ocean, Offshore and Arctic Engineering, Busan, Korea, Democratic People's Republic of, 19/06/16. https://doi.org/10.1115/OMAE2016-54137
Vosooghi N, Ivanovic A, Sriramula S. Contribution of Axial Soil Resistance in Buckle Initiation of the HPHT Pipelines on Sleepers. In Proceedings of the ASME 2016 35th International Conference on Ocean, Offshore and Arctic Engineering OMAE2016: Pipelines, Risers, and Subsea Systems. Vol. 5. ASME. 2016. p. 1-7. V005T04A027 https://doi.org/10.1115/OMAE2016-54137
Vosooghi, Navid ; Ivanovic, Ana ; Sriramula, Srinivas. / Contribution of Axial Soil Resistance in Buckle Initiation of the HPHT Pipelines on Sleepers. Proceedings of the ASME 2016 35th International Conference on Ocean, Offshore and Arctic Engineering OMAE2016: Pipelines, Risers, and Subsea Systems. Vol. 5 ASME, 2016. pp. 1-7
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title = "Contribution of Axial Soil Resistance in Buckle Initiation of the HPHT Pipelines on Sleepers",
abstract = "The objective of this paper is to assess the impact of soil axial resistance on initiation of the buckles on sleepers. It also covers the effects of history of pressure and temperature increase on effective axial force as well as the incorporation of external pressure in the Finite Element (FE) models. This is carried out for 6″, 8″, 10″ and 12″ pipelines laying on sleepers with different heights for a range of axial soil frictions and mobilisations. Knowing the sensitivity of buckle initiation to soil parameters can help in simplifying engineering analysis by avoiding repetitive simulations for parameters with less importance.To carry out the above, a series of FE models including normal and bi-linear axial contacts between pipeline and sleeper / seabed were built in Abaqus FE package and at the point of initiation of the buckles, the effective axial force was extracted by a Python script. FE models were validated by comparison of the simulation results with analytical solutions and experimental results from published literature.",
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AB - The objective of this paper is to assess the impact of soil axial resistance on initiation of the buckles on sleepers. It also covers the effects of history of pressure and temperature increase on effective axial force as well as the incorporation of external pressure in the Finite Element (FE) models. This is carried out for 6″, 8″, 10″ and 12″ pipelines laying on sleepers with different heights for a range of axial soil frictions and mobilisations. Knowing the sensitivity of buckle initiation to soil parameters can help in simplifying engineering analysis by avoiding repetitive simulations for parameters with less importance.To carry out the above, a series of FE models including normal and bi-linear axial contacts between pipeline and sleeper / seabed were built in Abaqus FE package and at the point of initiation of the buckles, the effective axial force was extracted by a Python script. FE models were validated by comparison of the simulation results with analytical solutions and experimental results from published literature.

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