Analysis On Ballasted Track State Of High-speed Railway

In view of repair and maintenance work’s management data and experience, this paper statistically analyses the track irregularity data which is detected by the dynamic track inspection car, and combine with feedback data from repair and maintenance department, it goals to make suggestions to increase the efficiency and quality of the repair and maintenance department’s work.Collected and settled the latest2years’track irregularity data from one of our country’s highs-peed ballast track railway. Calculated the TQI, extreme value and other data based on the data of1.2km long section line in2012, then we analyzed the developing of the track irregularity state. As to the repair and maintenance duties’record, this paper briefly analyzes the impact of the developing of track irregularity state by the work of repair and maintenance, especially the deterioration of TQI and extreme value.Based to the railway section track irregularity integrating factor prediction method and the track irregularity data of a section from KM80+600to KM81+800,which is detected from June to September2012on the high-speed ballast track, this paper predicted the development of the irregularity state in the short term. Furthermore, it also verified the accuracy and practical of the railway section track irregularity integrating factor prediction method via the contrast of the predicted data and measured data.Refers to the repair and maintenance work experience, this paper briefly concludes the types of track defects, the repair and maintenance methods to these defects and the effect and attentions of these methods.