Assessment of conventional French railway sub-structure: a case study - École des Ponts ParisTech Access content directly
Journal Articles Bulletin of Engineering Geology and the Environment Year : 2015

Assessment of conventional French railway sub-structure: a case study

Trong Vinh Duong
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  • PersonId : 770449
  • IdRef : 176269975
Yu-Jun Cui
Anh Minh A.M. Tang
Nicolas Calon
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  • PersonId : 884210
Alain Robinet
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  • PersonId : 884212

Abstract

A statistical study was firstly undertaken on problems that occurred in a period of more than 1 year and were related to train circulation in the entire conventional French railway network. Emphasis was put on the degradation of track components. The analysis evidenced the particular importance of sub-grade quality in the performance of the whole track. After this general analysis, a conventional railway line in the West of France was investigated. In the sub-structure of this line, an interlayer was identified that was created mainly by interpenetration of ballast and sub-grade. In the analysis, the degradation rate of this line was correlated with different parameters, such as the nature of sub-grades involved along the line and the thickness of different layers. The results showed that the degradation rate is correlated to the thickness of various layers. Furthermore, it was observed that the interlayer plays an important role in the performance of tracks, as it represents a transition layer for the train-induced stress transmission to the sub-grade.
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Dates and versions

hal-01271093 , version 1 (25-04-2018)

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Trong Vinh Duong, Yu-Jun Cui, Anh Minh A.M. Tang, Nicolas Calon, Alain Robinet. Assessment of conventional French railway sub-structure: a case study. Bulletin of Engineering Geology and the Environment, 2015, 74 (1), pp.259-270. ⟨10.1007/s10064-014-0575-y⟩. ⟨hal-01271093⟩
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