“…i pcoefficients that take into account the type of external loads (internal pressure, torsion, longitudinal displacements, temperature gradients, etc. ); l r radius vector of a point on the upper part of the pipeline (for the construction of l r according to the data on the movement of the points of the upper part using interpolation smoothing splines [1,2], taking into account the accuracy of measurement of coordinates by geodetic [6,14] by techniques or methods of inline inspection [9,15,16];…”