Abstract
High substructure stiffness leads to an increase in rail pressure on the sleeper. As a result, the track settlement is accelerated, and the dynamic component of the wheel load increases as well. Reducing the vibrational dynamic effect on the subgrade and ballast is the most effective reserve for improving railway track reliability. Field studies were conducted to evaluate the effect of using elastic geosynthetic materials on top of the subgrade on the strain state. These materials help reduce and level stiffness of subballast and subgrade. To assess the values of the track elastic deformations, Getzner Werkstoffe mats, Colbond Enkadrain pads and porous rubber pads were placed on top of the subgrade. The influence of axle loads on the elastic deformations of rail has been investigated, and a comparison with typical control track sections has been made. The effects of using the elastic geosynthetic materials on rail elastic strains were obtained under varied axial and linearly increasing loads.
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Petriaev, A., Konon, A., Egorov, V. (2022). The Effect of Elastic Pads and Mats on the Stress–Strain State of Railway Subgrade. In: Tutumluer, E., Nazarian, S., Al-Qadi, I., Qamhia, I.I. (eds) Advances in Transportation Geotechnics IV. Lecture Notes in Civil Engineering, vol 165. Springer, Cham. https://doi.org/10.1007/978-3-030-77234-5_23
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DOI: https://doi.org/10.1007/978-3-030-77234-5_23
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