Evaluation of the strength of oil pipelines built in the mountains

  • Nguyen Van Lam Ivano-Frankivsk National Technical University of Oil and Gas
  • A. S. Velychkovych Ivano-Frankivsk National Technical University of Oil and Gas
  • А.V.Andrusiak Ivano-Frankivsk National Technical University of Oil and Gas
Keywords: Aboveground transition, oil pipeline, foundation soil, stress state

Abstract

The article presents the methodology for evaluating stress-strain state of aboveground oil pipelines which are constructed in mountainous areas based on mathematical formulation and the analytical solutions of the problem that describes the behaviour of aboveground pipeline under operational loads. Sections of pipeline have been modelled as tubular rods in contact with foundation soil according to the Fuss-Winkler hypothesis; and the two-dimensional thermoelastic state of aboveground pipeline established to determine maximum axial stresses that occur during operation, from which the strength of the pipeline is assessed based on energy hypotheses. This method allows the impact of foundation soil on the pipeline to be taken into account; demonstrates the re-distribution of internal force inside the aboveground pipeline when the rigidity of its foundation soil changes; and determines the boundary state which the pipeline reaches in its lower fibres at a short distance from the edge of the underground area.

References

1. E.Shashi Menon. Pipeline planning and construction field manual. Gulf Professional Publishing. 2011
2. Я. В.Дорошенко. Спорудження магістральних трубопроводів: Підручник. Івано-Франківськ: ІФНТУНГ.
2009.
3. Бородавкин П. П. Механика грунтов. П.П. Бородавкин. М.: Недра - Бизнесцентр. 2003.
4. Ориняк І.В. Визначення напружено - деформованого стану повітряного переходу трубопроводу при виконанні ремонтних робіт. І. В. Ориняк, І. В. Лохман, М. Д. Сидор та ін. Проблемы прочности. 2009; 5(401): c. 169 - 181.
5. George A.Antaki. Piping and pipeline engineering: Construction, maintenance, integrity, and repair. New York, U.S.A. 2003.
6. Бородавкин П.П. Сооружение магистральных трубопроводов. Учебник для вузов/ П. П. Бородавкин, В.Л.Березин. - 2 - е изд., перераб. и доп. - М.: Недра. 1987.
7. Бабин Л.А. Типовые расчеты по сооружению трубопроводов. Учебное пособие/Л.А. Бабин, Л.И. Быков, В.Я. Волохов. - М.: Недра, 1999.
8. NOV Fiber Glass Systems. Engineering and piping design guide. Fiberglass reinforced piping systems. www.fgspipe.com. 2011.
9. Fahad Bakhtyar, S.Kenny. Development of a fatigue life assessment tool for pipelines with local wrinkling through physical testing and numerical modelling. Pipeline and Riser Technology. ASME 2014 33rd International Conference on Ocean, Offshore and Arctic Engineering, California, USA. 8-13 June, 2014.
10. Xiaolin Wang, Jian Shuai, Yuanxi Ye, Shangzhi Zuo. Investigating the effects of mining subsidence on buried pipeline using fi nite element modeling. 2008 7th International Pipeline Conference. Alberta, Canada. 29 September - 3 October, 2008.
11. I.V.Orynyak, I.V.Lokhman, M.D.Sidor, S.A.Radchenko. Analysis of the stress-strain state of an air crossing of pipeline in the course of repair. Strength of Materials. 2009; 41(5): p. 581 -591.
12. А.В.Яваров. Численное моделирование сопротивления массива грунта перемещениям подземного трубопровода. Электронный научный журнал «Нефтегазовое дело». 2012; 3: c. 360 - 374.
13. T.Benz. Small-strain stiffness of soils and its numerical consequences. Instituts für Geotechnik der Universität Stuttgart. 2007; 55.
14. В.В.Алешин. Численный анализ прочности подземных трубопроводов. М.: Изд-во Едиториал УРСС. 2003.
15. В.Е.Селезнев, В.В.Алешин, С.Н.Прялов. Математическое моделирование магистральных трубопроводных систем: дополнительные главы. М.: Изд-во МАКС Пресс. 2009.
16. J.R.Williams, R.O’Connor. Discrete element simulation and the contact problem. Archives of Computational Methods in Engineering. 1999; 6(4): p. 279 - 304.
17. Х.Хан . Теория упругости: Основы линейной теории и ее применение. М.: Мир. 1988.
18. James M.Gere, Barry J.Goodno. Mechanics of materials (8th edition). Cengage Learning Custom Publishing. 2012.
Ống dẫn nổi - Dạng mô hình trong tính toán
Published
2015-09-28
How to Cite
Nguyen, V. L., A. S. Velychkovych, & А.V.Andrusiak. (2015). Evaluation of the strength of oil pipelines built in the mountains. Petrovietnam Journal, 9, 46 - 52. Retrieved from https://pvj.com.vn/index.php/TCDK/article/view/795
Issue
Vol 9 (2015)
Section
Articles

1. The Author assigns all copyright in and to the article (the Work) to the Petrovietnam Journal, including the right to publish, republish, transmit, sell and distribute the Work in whole or in part in electronic and print editions of the Journal, in all media of expression now known or later developed.

2. By this assignment of copyright to the Petrovietnam Journal, reproduction, posting, transmission, distribution or other use of the Work in whole or in part in any medium by the Author requires a full citation to the Journal, suitable in form and content as follows: title of article, authors’ names, journal title, volume, issue, year, copyright owner as specified in the Journal, DOI number. Links to the final article published on the website of the Journal are encouraged.