Keyword: «main oil pipelines»

Scientific basics of computation and experimental justification of strength, life-time, reliability and safety of the main oil pipelines in complicated climatic conditions are considered; the main factors of increase of danger at achievement of dangerous limit states are given. The order and orientation of standard and non-standard laboratory researches of basic mechanical properties are characterized. The keying equations and their parameters for a final estimation of safety and risks by strength and deformation criteria which depend on time of an service loading and its cyclic mode are given.