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Registration Number

0225U004205, (0124U002834) , R & D reports

Title

Increasing the resource of elements of the subway track

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Підвищення ресурсу елементів рейкової колії метрополітену

Head

Malishevska Alina S., Кандидат технічних наук
Ovchinnikov Oleksandr O., Кандидат технічних наук

Registration Date

26-11-2025

Organization

Ukrainian State University of Railway Transport

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New laws that will allow to increase the resource of rail track elements in the conditions of the subway

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Increasing the durability of subway buildings and structures, ensuring the stable operation of all equipment responsible for the safety and uninterrupted movement of trains, primarily the track and its elements, reducing the costs of current maintenance and repair of the track and tunnel structures, and traffic safety are important tasks. And first of all, one of the main tasks is to ensure reliable interaction in the "wheel-rail" system, for a more rational use of material and technical means, which allows optimizing the entire system of track management. When a train moves, complex processes occur in the "wheel-rail" contact, which negatively affect the upper structure of the track and reduce its resource. A special danger for subways, and incomparably greater than for trunk railways, is the widening of the track in curved sections due to the wear of the resistant flanges of the "Metro" under-rail pads on the outer rail thread. The reason for this is the structural features of the fastening and large impact loads, the effect of friction in the presence of abrasive wear products of track elements and tunnel contamination that occur when trains pass along curved sections of the track in the subway.

Product Description

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Alina S. Malishevska
Oleksandr O. Ovchinnikov

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2025-11-26