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1 Zeszyty Naukowe Katedry Mechaniki Stosowanej / Politechnika Śląska

1 2003

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Numerical simulation of loading of buried gas pipeline elbow after renovation of isolation coat during operation

Janco R., Podebradsky J.

Zeszyty Naukowe Katedry Mechaniki Stosowanej / Politechnika Śląska

2003

z. 21

101-106

Because of economic reasons many of the maintenance and repair activities at the buried gas pipeline are performed during its operation. By digging off the earth from the sides of the pipeline in certain length there is a possibility that additional bending loading of the pipe occur due to its deflection. This is caused by the additional compressive force which originates in the buried pipeline as a result of a detained strain, when the longitudinal strain in the pipeline due to serace condition (internal pressure and heating) cannot be realized. In the paper a numerical simulation (using of program ANSYS) of buried gas pipeline elbow at backfill removal due to repair of isolation coat and following filling will be presented.