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2020 | OriginalPaper | Buchkapitel

A Model for Evaluating Long-Term Support Degradation at Railway Switches

verfasst von: Ilaria Grossoni, Yann Bezin, Louis Le Pen, Geoff Watson, Dimitrios Kostovasilis

Erschienen in: Advances in Dynamics of Vehicles on Roads and Tracks

Verlag: Springer International Publishing

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Abstract

A railway switch is characterised by movable parts, discontinuities in rail geometry and non-uniformities in trackbed stiffness. This work aims to assess the performance of railway switches considering long-term degradation of trackbed support with trafficking. A vehicle-track interaction model capable of reproducing the longitudinal variation in support stiffness and changes in contact condition through the switch panel is used. Site measurements of bearer deflection at a selected S&C are used to back-calculate a trackbed stiffness and initialise dynamic simulations to determine wheel-rail and trackbed contact forces. The calculated trackbed forces are used as an input in an iterative process to estimate the evolution of long-term rail top level and irregularity growth. The model results are compared with measured rail irregularity growth and the model is shown to predict similar trends. Model results and measurements show that higher rates of track geometry degradation occur around the load transfer area. The use of Under Sleeper Pads is found to decrease differential settlement within the panel.
Literatur
1.
Zurück zum Zitat Cornish, A., et al.: Monitoring of strain of in-service railway switch rails through field experimentation. Part F: J. Rail Rapid Transit 230(5), 1429–1439 (2016) Cornish, A., et al.: Monitoring of strain of in-service railway switch rails through field experimentation. Part F: J. Rail Rapid Transit 230(5), 1429–1439 (2016)
2.
Zurück zum Zitat Nicklisch, D., et al.: Geometry and stiffness optimization for switches and crossings, and simulation of material degradation. Part F: J. Rail Rapid Transit 224, 279–292 (2010) Nicklisch, D., et al.: Geometry and stiffness optimization for switches and crossings, and simulation of material degradation. Part F: J. Rail Rapid Transit 224, 279–292 (2010)
3.
Zurück zum Zitat Le Pen, L., et al.: Behaviour of under sleeper pads at switches and crossings – Field measurements. Part F: J. Rail Rapid Transit. 232(4), 1049–1063 (2018) Le Pen, L., et al.: Behaviour of under sleeper pads at switches and crossings – Field measurements. Part F: J. Rail Rapid Transit. 232(4), 1049–1063 (2018)
4.
Zurück zum Zitat Grossoni, I., et al.: The role of support stiffness in turnouts: comparison of vehicle-track interaction models against field measurements. Submitted in an International Publication Grossoni, I., et al.: The role of support stiffness in turnouts: comparison of vehicle-track interaction models against field measurements. Submitted in an International Publication
5.
Zurück zum Zitat Auer, F., et al.: Under sleeper pads in track – the UIC project. Eur. Railw. Rev. 19 (2013) Auer, F., et al.: Under sleeper pads in track – the UIC project. Eur. Railw. Rev. 19 (2013)
6.
Zurück zum Zitat DIN, Deutsche Norm 45673: Resilient elements used in railway tracks - Part 6: laboratory test procedures for under-sleeper pads of concrete sleepers. German Institute for Standardization, Berlin (2013) DIN, Deutsche Norm 45673: Resilient elements used in railway tracks - Part 6: laboratory test procedures for under-sleeper pads of concrete sleepers. German Institute for Standardization, Berlin (2013)
7.
Zurück zum Zitat Le Pen, L., et al.: Evaluating railway track support stiffness from trackside measurements in the absence of wheel load data. Can. Geotech. J. 53(7), 1156–1166 (2016) CrossRef Le Pen, L., et al.: Evaluating railway track support stiffness from trackside measurements in the absence of wheel load data. Can. Geotech. J. 53(7), 1156–1166 (2016) CrossRef
8.
Zurück zum Zitat Bowness, D., et al.: Monitoring the dynamic displacements of railway track. Proc. Inst. Mech. Eng. Part F: J. Rail Rapid Transit 221(1), 13–22 (2007) CrossRef Bowness, D., et al.: Monitoring the dynamic displacements of railway track. Proc. Inst. Mech. Eng. Part F: J. Rail Rapid Transit 221(1), 13–22 (2007) CrossRef
9.
Zurück zum Zitat Lamas-Lopez, F., et al.: Assessment of integration method for displacement determination using field accelerometer and geophone data. J. Zhejiang Univ. Sci. A 18(7), 553–566 (2017) CrossRef Lamas-Lopez, F., et al.: Assessment of integration method for displacement determination using field accelerometer and geophone data. J. Zhejiang Univ. Sci. A 18(7), 553–566 (2017) CrossRef
10.
Zurück zum Zitat Le Pen, L., et al.: The behaviour of railway level crossings: insights through field monitoring. Transp. Geotech. 1(4), 201–213 (2014) CrossRef Le Pen, L., et al.: The behaviour of railway level crossings: insights through field monitoring. Transp. Geotech. 1(4), 201–213 (2014) CrossRef
11.
Zurück zum Zitat Grossoni, I., Bezin, Y., Neves, S.: Optimisation of support stiffness at railway crossings. Veh. Syst. Dyn. 56(7), 1072–1096 (2018) CrossRef Grossoni, I., Bezin, Y., Neves, S.: Optimisation of support stiffness at railway crossings. Veh. Syst. Dyn. 56(7), 1072–1096 (2018) CrossRef
12.
Zurück zum Zitat Grossoni, I., Andrade, A.R., Bezin, Y., Neves, S.: The role of track stiffness and its spatial variability on long-term track quality deterioration. Proc. Inst. Mech. Eng. Part F: J. Rail Rapid Transit 233(1), 16–32 (2019) CrossRef Grossoni, I., Andrade, A.R., Bezin, Y., Neves, S.: The role of track stiffness and its spatial variability on long-term track quality deterioration. Proc. Inst. Mech. Eng. Part F: J. Rail Rapid Transit 233(1), 16–32 (2019) CrossRef
13.
Zurück zum Zitat In2Rail: D3.3: evaluation of optimized track systems (2017) In2Rail: D3.3: evaluation of optimized track systems (2017)
14.
Zurück zum Zitat Nielsen, J.C., et al.: Railway track geometry degradation due to differential settlement of ballast/subgrade – numerical prediction by an iterative procedure. J. Sound Vib. 412, 441–456 (2018) CrossRef Nielsen, J.C., et al.: Railway track geometry degradation due to differential settlement of ballast/subgrade – numerical prediction by an iterative procedure. J. Sound Vib. 412, 441–456 (2018) CrossRef
15.
Zurück zum Zitat British Railways Board: RT/CE/C/038: track recording handbook. London (1996) British Railways Board: RT/CE/C/038: track recording handbook. London (1996)
Metadaten
Titel
A Model for Evaluating Long-Term Support Degradation at Railway Switches
verfasst von
Ilaria Grossoni
Yann Bezin
Louis Le Pen
Geoff Watson
Dimitrios Kostovasilis
Copyright-Jahr
2020
DOI
https://doi.org/10.1007/978-3-030-38077-9_45

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