Parameter Study Of Connected Curves In High-speed Railway Yard Of Large-scale Railway Passenger Station

With the rapid development of our country's high-speed railway in recent years,relevant large passenger stations and station yards are constructed abundantly.Because of the increased train passing speed through the turnout and other relevant factors, lines in the high-speed railway passenger station yard have great differences with those conventional stations. So related special researches are needed urgently.Considering the transportation organization patterns and different speeds over high-speed stations. Parameter of main lines,hair curves and transition curves are studied firstly. Then by establishing the model of vehicle-line dynamic interaction, related parameter of curves behind the turnout are researched, and rules of effects on vehicle-line dynamic response caused by include line length and transition curve length are obtained. The selections of parameters for connected curves in the yard are optimized and make relevant design, research are more reasonable.Based on the existing research references,the following aspects about the connected curves in high-speed railway yard of large-scale railway passenger station are studied:1. For parameters of plane curves in high-speed railway yard of large-scale railway passenger station, relevant station's traffic scheme, stop speed are different based on train's transportation organization pattern, and the parameter selection for main line and hair line are influenced. Corresponding curve parameter are proposed by the reaserches in this paper.2. Based on the vehicle dynamics and sinusoidal wave theory, the vehicle-line dynamic model applicable to yard curve analysis is established. The calculation analysis program is prepared, and theory basis is provided for yard parameter optimization.3.Through vehicle-line dynamic model and calculation analysis program, the dynamic responses after vehicles passing through curves behind the turnout are reaserched.From several respects include the,mathes of different include line length,transition curve length,the match of curve radius and transition curve length,different operation speed and replace comparative analysis of transition curve and include lines, vehicles dynamic responses induced by rail irregularities and vehicle Sinusoidal movement when the train is running on the include line and curve behind the turnout are discussed. And the changes of vehicle acceleration under different conditions are analyzed, and parameters of corresponding curve are obtained. The oratical references are provided for reasonable parameter selection of curves and straight lines in the yard.