Evaluation of the effect of tamping on the track geometry condition: A case study

Soleimanmeigouni, ImanLuleå tekniska universitet,Drift, underhåll och akustik (författare)

Validerad;2018;Nivå 2;2018-02-12 (svasva)
Tamping is one of the major activities applied by railway maintenance managers to recover track geometry condition. Modelling the tamping effectiveness along with track geometry degradation is essential for long term prediction of track geometry behaviour. The aim of this study is to analyse theeffect of tamping on the different track geometry measures, i.e. longitudinal level, alignment and cant; on the basis of inspection car records from a part of Main Western Line in Sweden. To model recovery after tamping a probabilistic approach is applied. The track geometry condition before tamping was considered as the dominant factor for modelling the model parameters. Correlation analysis has performed to measure the linear relation between the recoveries of the different geometry measures. The results show a moderate correlation between the recovery of the longitudinal level and that of the cant, and a weak correlation between the recovery of the longitudinal level and that of the alignment. Linear regression and Wiener process are also applied to model track geometry degradation and to obtain degradation rates. Theeffect of tamping on degradation rate is analysed. It is observed that the degradation rate was increased after tamping intervention.

TEKNIK OCH TEKNOLOGIER Samhällsbyggnadsteknik Annan samhällsbyggnadsteknik hsv//swe
ENGINEERING AND TECHNOLOGY Civil Engineering Other Civil Engineering hsv//eng
Correlation analysis
geometry measures
probabilistic model
railway maintenance
tamping
tamping effectiveness
track degradation
track geometry
Weiner process
Operation and Maintenance Engineering
Drift och underhållsteknik

Ahmadi, AlirezaLuleå tekniska universitet,Drift, underhåll och akustik(Swepub:ltu)aliahm (författare)
Arasteh Khouy, ImanLuleå tekniska universitet,Drift, underhåll och akustik(Swepub:ltu)iman (författare)
Letot, ChristopheMachine Design and Production Engineering Lab, Research Institute for the Science and Management of Risks, University of Mons, Mons, Belgium (författare)
Luleå tekniska universitetDrift, underhåll och akustik (creator_code:org_t)

Ingår i:Proceedings of the Institution of mechanical engineers. Part F, journal of rail and rapid transit: Sage Publications232:2, s. 408-4200954-40972041-3017

Av författaren/redakt...: Soleimanmeigouni ...; Ahmadi, Alireza; Arasteh Khouy, I ...; Letot, Christoph ...

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