«Proceedings of Gubkin University»

Deformed state of an oil and gas pipeline under conditions of seismic soil shear

UDC: 621.825
DOI: 10.33285/2073-9028-2022-1(306)-52-59

Authors:

¹ Gubkin Russian State University of Oil and Gas (National Research University), Moscow, Russian Federation
² A.A. Blagonravov Institute of Machine Science Russian Academy of Sciences, Moscow, Russian Federation

Keywords: pipeline, deformation, bending moment, tectonic fault, plasticity

Annotation:

The article considers the deformed state of the main oil and gas pipeline in earthquake-prone areas under conditions of transverse and horizontal shifting of soils. The quadratic plasticity criterion was used in the derivation of theoretical dependencies. As a result, the displacement equations and the distribution of bending moments along the pipeline are obtained, taking into account the tectonic shift. The analysis of the equation of motion allows you to identify the conditions for the occurrence of crumpling, rupture or cut of the pipeline.

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