Analysis of the reconstruction of curved sections of the track when replacing curved track switches produced by “VAE” (Riga)

Abstract

To date, the Belarusian railway operates 24 curved switches manufactured by “VAE” (Riga). The main difference between these switches is the individuality of their design, which is fundamentally different from the design of standard switches. Switches have been in operation since 1999, and have proven themselves to be positive recommend. But when the service life of switches ends, the question on their replaceability naturally arises. The problem is that today “VAE” does not plan to certify its products in accordance with the requirements of TR CU 003/2011 “Оn the safety of railway transport infrastructure”. There are 7 crosses and 16 stock rails with points available for these switches in the maintenance sections. If it is not possible to purchase switches manufactured by “VAE”, they will need to be replaced with either single ordinary switches or standard curved ones. Standard curved switches are produced by switch plants located on the territory of the Russian Federation and have certificates of compliance with the requirements of TR CU 003/2011. However, compared to switches manufactured by “VAE”, Russian switches are made only with specific radii of constant curvature, and not with the radii of the curves in which these switches are inscribed at stations. Replacing curved “VAE” switches with standard switches increases the cost of repairs several times and entails rearrangement of the tracks according to a new axis, up to the reconstruction of the entire yard neck.