Influence of Anchoring on Burial Depth of Submarine Pipelines
Since the beginning of the twenty-first century, there has been widespread construction of submarine oil-gas transmission pipelines due to an increase in offshore oil exploration. Vessel anchoring operations are causing more damage to submarine pipelines due to shipping transportation also increasin...
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| Format: | Online |
| Language: | English |
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Public Library of Science
2016
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| Online Access: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4864321/ |
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pubmed-4864321 |
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pubmed-48643212016-05-18 Influence of Anchoring on Burial Depth of Submarine Pipelines Zhuang, Yuan Li, Yang Su, Wei Research Article Since the beginning of the twenty-first century, there has been widespread construction of submarine oil-gas transmission pipelines due to an increase in offshore oil exploration. Vessel anchoring operations are causing more damage to submarine pipelines due to shipping transportation also increasing. Therefore, it is essential that the influence of anchoring on the required burial depth of submarine pipelines is determined. In this paper, mathematical models for ordinary anchoring and emergency anchoring have been established to derive an anchor impact energy equation for each condition. The required effective burial depth for submarine pipelines has then been calculated via an energy absorption equation for the protection layer covering the submarine pipelines. Finally, the results of the model calculation have been verified by accident case analysis, and the impact of the anchoring height, anchoring water depth and the anchor weight on the required burial depth of submarine pipelines has been further analyzed. Public Library of Science 2016-05-11 /pmc/articles/PMC4864321/ /pubmed/27166952 http://dx.doi.org/10.1371/journal.pone.0154954 Text en © 2016 Zhuang et al http://creativecommons.org/licenses/by/4.0/ This is an open access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. |
| repository_type |
Open Access Journal |
| institution_category |
Foreign Institution |
| institution |
US National Center for Biotechnology Information |
| building |
NCBI PubMed |
| collection |
Online Access |
| language |
English |
| format |
Online |
| author |
Zhuang, Yuan Li, Yang Su, Wei |
| spellingShingle |
Zhuang, Yuan Li, Yang Su, Wei Influence of Anchoring on Burial Depth of Submarine Pipelines |
| author_facet |
Zhuang, Yuan Li, Yang Su, Wei |
| author_sort |
Zhuang, Yuan |
| title |
Influence of Anchoring on Burial Depth of Submarine Pipelines |
| title_short |
Influence of Anchoring on Burial Depth of Submarine Pipelines |
| title_full |
Influence of Anchoring on Burial Depth of Submarine Pipelines |
| title_fullStr |
Influence of Anchoring on Burial Depth of Submarine Pipelines |
| title_full_unstemmed |
Influence of Anchoring on Burial Depth of Submarine Pipelines |
| title_sort |
influence of anchoring on burial depth of submarine pipelines |
| description |
Since the beginning of the twenty-first century, there has been widespread construction of submarine oil-gas transmission pipelines due to an increase in offshore oil exploration. Vessel anchoring operations are causing more damage to submarine pipelines due to shipping transportation also increasing. Therefore, it is essential that the influence of anchoring on the required burial depth of submarine pipelines is determined. In this paper, mathematical models for ordinary anchoring and emergency anchoring have been established to derive an anchor impact energy equation for each condition. The required effective burial depth for submarine pipelines has then been calculated via an energy absorption equation for the protection layer covering the submarine pipelines. Finally, the results of the model calculation have been verified by accident case analysis, and the impact of the anchoring height, anchoring water depth and the anchor weight on the required burial depth of submarine pipelines has been further analyzed. |
| publisher |
Public Library of Science |
| publishDate |
2016 |
| url |
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4864321/ |
| _version_ |
1613578293049556992 |