PSI - Issue 20

Oleg Naumov et al. / Procedia Structural Integrity 20 (2019) 53–56 Oleg Naumov et al. / Structural Integrity Procedia 00 (2019) 000 – 000

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The travel and bend occurrence effects adversely upon the oil pipeline SSS. In the conditions of the permafrost soils, a great difference in the temperatures of the fluid pumped and wall (protective envelope), effect of the pressure and the large bend radius create the limit stresses resulting in the fracture of the oil pipeline section; The best measures to decrease and to prevent the pipeline fractures and travel are the monitoring of the pipeline position (against the initial depth of burial), water removal along the pipeline route, use of the seasonal cooling units. 5. Acknowledgements The authors would like to thank colleagues for important advices and assistance in preparing this article. References Borodavkin. P.P., 1982. Underground main pipelines. Nedra, Moscow, pp. 276. Construction norms and regulations 2.01.07-85, 1985. Loads and effects. Construction norms and regulations 2.05.06-85, 1985. Main pipelines. Ivantsov, О.М. , Kharionovskiy, V.I., 1978. Main pipeline reliability. Nedra, Moscow, pp. 165. Naumov, O.V., Moskvitin, G.V., Polyakov, A.N., Pugachev, M.S., 2016. Particularities in operation of pipelines of underground routing in kryolith (permafrost soil) conditions. Proceedings of MIKMUS 29 Conference: Collected papers, Moscow, 97-99. Naumov, O.V., 2019. Simulation of main pipeline SSS in permafrost soil condition. MIKMUS 30: Collected papers, Moscow, 153-155. Permyakov, P.P., Varlamov, S.P., Zheleznyak, M.N., 2017. Effect of vertical, seasonal, cooling unit upon hydrothermal soil regime. Earth Cryosphere XXI(1), 66-72. State Standart 23253-78, 1978. Soils. Methods for field test of frozen soils. Vladimirov, А.I.,. Kershenbaum , V.Ya., 2009. Industrial safety and reliability of main pipelines. Ed. А.I. Vladimirov, V.Ya. Kershenbaum. National Institute of Oil and Gas, Мoscow, pp. 696. Annual Reports on activity of Federal Service for Environmental, Technological and Nuclear Supervision. URL: http://www.gosnadzor.ru/ osnovnaya_deyatelnost_otchety