Identification Method for Minor Changes in Track Geometry in Turnout Areas Based on Location Index and Confidence Coefficient
Aiming at the identification of minor changes in track geometry in turnout areas,based on the track ge-ometry inspection data in turnout areas and the ledger information of turnout equipment,the turnout location index and confidence coefficient were proposed to realize the accurate identification of the position of switch rail tip and point rail tip in previous turnout inspection data.The mileage information of the previous track geometry inspection data in the turnout area was corrected based on the mileage of key structure,achieving effective identification of the minor changes in the track geometry in the turnout area.Verified by the measured data,the proposed method has a mileage correction accuracy of less than 0.5 m for the previous inspection data of various turnouts,and could accurately identify the places with minor changes in the track geometry irregularity in the turnout section.The analysis results could provide scientific and effective guidance for front-line operators in turnout evaluation and maintenance.
turnout evaluationgeometric irregularity of trackmileage correctiondata mining
万方数据
维普
