Estimation of main oil- and oil product pipelines safety at the complex sections of the route
Problems of safety estimation of now in operation main oil- and oil products pipelines at the complex sections of the route are considered. Analytic expressions allowing to evaluate mechanical stresses in the pipe wall are obtained and pipeline safety is estimated by comparing the evaluated and standard stress values. Influence of operation loads and design parameters on the stress level and the structure safety is analyzed. Obtained results allow to choose technical solutions which ensure safe operation of main oil- and oil product pipelines.