stress strain state

We consider the analysis results of the stress strain state of main gas pipeline underground section. During the analysis we take into account soil compliance in areas, where the pipe goes out on the surface. The estimated model is adopted as a triple section beam with pinched ends, which extreme areas are based on the elastic foundation of Winkler type. Calculation algorithm is constructed using the matrix method of initial parameters. In the calculation example, we illustrate the impact of the soil compliance on pipe deformation as well as on bending moments in its cross section