A MODEL OF THE RAILWAY GROUND BED DEFORMATION BY PASSING LONG TRAINS
V. P. Solovev, A. V. Anisin, I. M. Anisina, S. S. Nadezhin, M. M. Zheleznov, V. O. Pevzner, I. V. Tretyakov
VANT. Ser.: Mat. Mod. Fiz. Proc 2019. Вып.3. С. 84-89.
The paper describes the extension of the earlier suggested computation technique to soils having viscoelastic properties. The experimental data obtained by the VNIIZhT employees for the railway track section Kovdor-Pinozero has been analyzed. It has been demonstrated that the best rheological model describing the railway deformation under the load of a passing train is the model of a standard linear solid body with parameters G1 = 17 MPa, G2 = 41 MPa, η2 = 6⋅103 MPa⋅s. The semi-analytical solution to the equation of ground bed deformation under a cyclic load from a passing long train with subsequent relaxation has been found. Keywords: railway, sub-ballast foundation, settlement of track, model of a standard linear solid body, viscosity.
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