Division of Railway Construction, Institute of Civil Engineering, Faculty of Civil and Environmental Engineering and Architecture, Poznań University of Technology , ul. Piotrowo 5, 61-138 , Poznań , Poland
In the paper a new method of railway subgrade investigation is analysed. Contact loss between track and subgrade in vertical plane is considered. During the roadbed investigations the rail is jacked up using a plate called “VSS”. It is assumed that variable temperatures have influence on the rail which is laid on a curved roadbed. Elasticity of the railway roadbed is calculated. Finally formulas and dependences of various types of track structures are obtained.
Bednarek, W., & Laurinavičius, A. (2003). Contact loss between railway track and subgrade in vertical plane during roadbed research. Journal of Civil Engineering and Management, 9(1), 10-15. https://doi.org/10.3846/13923730.2003.10531295
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