Evaluation and Pattern Research of High Speed Turnout Track Geometry
The track geometric irregularity of high speed turnout can directly reflect its service performance,and the management of track geometric irregularity in high speed turnout section is an important part in the turnout inspection,maintenance and repair system.Taking the inspection data collected by the high speed comprehensive inspection train from January to May 2023 as the study object,this paper analyzes the current situation of turnout laying on high speed main line from the perspectives of turnout structure,management speed,turnout model and frog number..Based on the track quality index of turnout area,this paper puts forward the turnout track status index and volatility index that can quantify the overall status and change of track geometry in a certain inspection period.Finally,taking the most widely laid 1/18 turnout as the study object,this paper analyzes the track geometric irregularity pattern of the main type 1/18 turnout.The study results lay a foundation for the subsequent application of TQI-T to evaluate the dynamic track geometric irregularity of turnouts on high speed main line and guide the maintenance and repair of turnout sections.
high speed railwayturnouttrack geometric irregularitydynamic inspectiontrack quality indexstatus management
NETL
NSTL
万方数据
