To the question of strengthening the structure of a continuously welded rail track in the presence of a braking factor
https://doi.org/10.52170/1815-9265_2025_75_88
Abstract
The article provides an overview of existing theoretical and experimental studies and approaches to strengthening the structure of a railway track. Modern trends in the design and construction of a railway track are characterized by the desire to ensure the strength and reliability of the structure.
The purpose of a new parameter for increasing the temperature of a continuously welded rails in the presence of a braking factor for trains pulled by modern and prospective locomotives is substantiated. It is noted that insufficient attention is currently paid to the temperature operation of a continuously welded track as the main track structure on the Russian railway network, especially under difficult operating conditions, taking into account the excessive longitudinal forces that arise during intensive electrodynamic braking of full-load and long-unit trains pulled by modern heavy multi-section locomotives.
The condition for the stability of a continuously welded track is formulated taking into account the braking factor of trains.The methodology for designing track reinforcement in the presence of a braking factor is improved. The existing track reinforcement options are systematized; an extensive-intensive approach to choosing reinforcement options is proposed. When designing and subsequently implementing a continuously welded track strengthening option, it is recommended to use algorithms that integrate expert opinions, theoretical research data and field tests in order to assign the best option, taking into account the train braking factor when calculating the track according to critical parameters, as one of the most unfavorable types of external impact on the track. An algorithm is proposed for assigning a continuously welded track strengthening option taking into account the train braking factor.
Recommendations are given for including the results of this study in regulatory documentation governing the design, construction and operation of continuously welded track.
About the Authors
I. K. Ardyshev
Siberian Transport University
Russian Federation
Russian Federation
Ilya K. Ardyshev – Lecturer of the Track and Track Facilities Department
Novosibirsk
D. V. Velichko
Siberian Transport University
Russian Federation
Russian Federation
Dmitry V. Velichko – Candidate of Engineering, Associate Professor, Associate Professor of the Track and Track Facilities Department
Novosibirsk
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Review
For citations:
Ardyshev I.K., Velichko D.V. To the question of strengthening the structure of a continuously welded rail track in the presence of a braking factor. Bulletin of Siberian State University of Transport. 2025;(3):88-96. (In Russ.) https://doi.org/10.52170/1815-9265_2025_75_88
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