Abstract
The paper studies the influence of the oil and gas pipeline on the base of water-saturated soil in terms of external forces effect (from the pipeline). The developed mathematical model of stress-strain state of “the oil and gas pipeline and the grounds” system allows us to identify the maximum load resulting from the impact of a curved section of the pipeline on the base as well as the deformations occurring in the grounds.
Highlights
Transportation of oil is carried out by one of the most profitable modes of transport – by pipeline.Its main advantage is a low cost of the transfer
It has its drawbacks, the main of which is a one-time large capital investment in the construction, as before starting to use the oil pipeline you need to build it from the starting point to its destination
A number of factors influences the pipeline: the pressure caused by curvilinear sections of the pipeline, internal pressure, temperature fields of soil and the pumped medium, the pressure of the overlying soil layer, the deformation of the base associated with the differential settlement of soil under its freezing and thawing
Summary
Transportation of oil is carried out by one of the most profitable modes of transport – by pipeline. The calculation of water-saturated base is carried out in the framework of the mathematical theory of water-saturated soil, with an account of the effect of residual excess pore pressure in a stable condition when the time factor is absent [7]. One solves the principal two-dimensional problem in the vertical plane, in which the horizontal force q2 is known as a result of the solution of the auxiliary problem. It is found with an account of the action of a longitudinal force q3. Approximate taking account of the action of longitudinal force q3 is carried out through force q2
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