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D. V. Novgorodov, V. G. Rybalko, A. S. Shleenkov, A. Yu. Surkov

A STUDY OF GAS PIPELINE EMERGENCY FAILURE

DOI: 10.17804/2410-9908.2018.6.237-248

The paper presents the results of studying the causes of emergency failure of a gas pipeline with a diameter of 377 mm and a wall thickness of 6 mm (spiral-welded pipe). The gas pipeline has been operated for more than 35 years. In the process of the study, metal-fractographic analysis and mechanical tests were carried out. As a result, it has been established that the pipe material corresponds to the design solutions and that the overload is not associated with the growth of internal pressure. The reason for the force overload in the fracture zone is the ground instability caused by seasonal temperature fluctuations. The analysis of the causes of emergency failure makes it possible to improve the reliability of the pipeline through measures aimed at reducing off-design loads.

Acknowledgments: The work was performed within the state assignment from FASO Russia on the subject of Diagnostics, No. AAAA-A18-118020690196-3.

Keywords: gas pipeline, emergency failure, testing, research methods, fracture, strength calculation, force overload

References:

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Article reference

A Study of Gas Pipeline Emergency Failure / D. V. Novgorodov, V. G. Rybalko, A. S. Shleenkov, A. Yu. Surkov // Diagnostics, Resource and Mechanics of materials and structures. - 2018. - Iss. 6. - P. 237-248. -
DOI: 10.17804/2410-9908.2018.6.237-248. -
URL: http://eng.dream-journal.org/issues/content/article_210.html
(accessed: 07/24/2024).

 

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