Modelling the Operation of a Ballast Prism with Under-Sleeper Pads
https://doi.org/10.30932/1992-3252-2024-22-4-1
Abstract
An important condition for operation of extra heavy-duty lines is to ensure the stability of the track geometry, including in the vertical plane, which largely depends on the stability of the sleeper base and on the absence of residual deformation of the ballast layer.
The article refers to the analysis of the results of a study on reducing residual deformations of the ballast layer using sleeper pads. The objective of the work is to assess their impact on the operation of the ballast prism during the stabilisation period and the period of its normal operation. The laboratory tests allowed obtaining a stamp settlement graph, determining the intensity of its settlement, measuring the contact area of the stamp sole with the ballast, calculating contact stresses, constructing a graph of the change in the elastic modulus of the model.
The results of the study have revealed that sleeper pads help to reduce residual deformations of the ballast layer during its stabilisation period and the intensity of settlement during the main period of its operation.
About the Authors
E. O. Dylev
Russian University of Transport
Russian Federation
Russian Federation
Egor O. Dylev - Ph.D. student at the Department of Track and Track Facilities of Russian University of Transport.
Moscow
Russian Science Citation Index AuthorID 1157251
E. S. Ashpiz
Russian University of Transport
Russian Federation
Russian Federation
Evgeny S. Ashpiz - D.Sc. (Eng), Associate Professor, Head of the Department of Track and Track Facilities of Russian University of Transport.
Moscow
Russian Science Citation Index AuthorID 169354
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Review
For citations:
Dylev E.O., Ashpiz E.S. Modelling the Operation of a Ballast Prism with Under-Sleeper Pads. World of Transport and Transportation. 2024;22(4):6-12. https://doi.org/10.30932/1992-3252-2024-22-4-1
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