Examining the Influence of Railway Track Routing on the Thermal Regime of the Track Substructure – Experimental Monitoring
Based on the experimental monitoring results, the paper identifies the influence of non-traffic load (water, snow, frost) on the track substructure freezing, depending on the track routing method (embankment, cut).
The paper introduction characterizes two railway track models (scale 1:1), which are a part of the Experimental Stand DRETM, (in the influence assessment the 1st measuring profile - embankment and the 5th measuring profile – cut are applied). The second part of the paper presents the results of the experimental monitoring and subsequently the comparison of both measuring profiles, in regard to the achieved value of the track substructure depth of freezing. The paper conclusion evaluates the influence of the railway track routing on the thermal regime and on the track substructure freezing.
KeywordsRailway track Thermal regime of track substructure Air frost index Depth of freezing of track substructure
The presented results are the results of solving the VEGA grant project 1/0275/16 Optimization design of sleeper subgrade due to non-traffic load aspect.
- 1.Newmann, G.P.: Heat and mass transfer in unsaturated soils during freezing. M.Sc. thesis. University of Saskatchewan, Canada (1995)Google Scholar
- 2.Pentland, J.S.: Use of a general partial differential equation solver for solution of heat and mass transfer problems in soils. University of Saskatchewan, Canada (2000)Google Scholar
- 3.Soliman, H., Kass, S., Fleury, N.: A simplified model to predict frost penetration for Manitoba soils. In: Annual Conference of the Transportation Association of Canada Toronto, Ontario (2008)Google Scholar
- 4.Tam, A.: Permafrost in Canada’s Subarctic Region of Northern Ontario, University of Toronto (2009)Google Scholar
- 5.Fredlund, M.: SOILVISION, A Knowledge-Based Soils Database, User’s Manual, Saskatoon, Saskatchewan, Canada (2011)Google Scholar
- 6.Thode, R.: SVHEAT, 2D/3D Geothermal Modeling Software, Tutorial Manual, Saskatoon, Saskatchewan, Canada (2012)Google Scholar
- 7.Ižvolt, L., Dobeš, P., Pultznerová, A.: Monitoring of moisture changes in the construction layers of the railway substructure body and its subgrade. Proc. Eng. 161, 1049–1056 (2016). Elsevier B.V., Amsterdam, The Netherlands. ISSN 1877-7058Google Scholar
- 8.TNŽ 736312: The design of structural layers of subgrade structures (in Slovak). GR ŽSR. Slovakia (2005)Google Scholar