The state of track deterioration is a key factor affecting traffic safety. In order to better study the deterioration of the track state, it is necessary to analyze firstly the uncertainty of track degradation. This paper analyzes the geometric deterioration of railway track and the uncertainty related to the degradation phenomenon based on a series of data collected from the track sections of K820–K840 railway section of Lanzhou-Xinjiang railway line. Firstly, the degradation parameters of the track irregularity are selected as the research object of this paper, and the evolution trend is studied. The linear relationship between the standard deviation of longitudinal level irregularity and the operation time is proved, and the initial standard deviation and deterioration rate are obtained; then, proper probabilistic distributions are fitted using K-S goodness-of-fit test. The lognormal distribution was selected to establish the relevant deterioration parameter model. The uncertainty of the track geometric degradation was also explored.
Uncertainty in Lanzhou-Xinjiang Railway Track Longitudinal Level Irregularity Degradation
Lect. Notes Electrical Eng.
2020-03-24
7 pages
Article/Chapter (Book)
Electronic Resource
English
Uncertainty in Lanzhou-Xinjiang Railway Track Longitudinal Level Irregularity Degradation
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