Length optimization of straight line connecting turnout on main line in high-speed railway station yard  

作　　者：YIN Guo-dong SHI Jin WEI Qing-chao LAI Lin 尹国栋;时瑾;魏庆朝;来琳

机构地区：[1]School of Civil Engineering,Beijing Jiaotong University,Beijing 100044,China [2]China Railway Design Corporation,Tianjin 300142,China

出　　处：《Journal of Central South University》2017年第5期1111-1120,共10页中南大学学报（英文版）

基　　金：Project(2014JBZ012)supported by the Fundamental Research Funds for the Central Universities,China

摘　　要：Taking the development of high-speed railway in China as background, and referring to the dynamic theory and wheel-rail contact mode, dynamic analysis model was established, considering the setting position of straight lines and running conditions of train in high-speed railway station yard. Using the established model, and choosing vehicle lateral acceleration and wheel suspension as the evaluation indexes, dynamic characteristic of vehicle traveling in turnout and adjacent area on main line was analyzed, and effects on travelling safety and stability of train aroused by length variation of straight lines were calculated based on analyzing the damping rules of vibration. The results show that, a certain length of straight lines can alleviate the vibration aroused in turnout and curve(turnout), length of straight lines connecting turnouts in different sections on main line was proposed to meet the demand of traveling stability, and shortening or cancelation of straight line for the scale limitation of station yard has less influence on operation safety of train.Taking the development of high-speed railway in China as background, and referring to the dynamic theory and wheel-rail contact mode, dynamic analysis model was established, considering the setting position of straight lines and running conditions of train in high-speed railway station yard. Using the established model, and choosing vehicle lateral acceleration and wheel suspension as the evaluation indexes, dynamic characteristic of vehicle traveling in turnout and adjacent area on main line was analyzed, and effects on travelling safety and stability of train aroused by length variation of straight lines were calculated based on analyzing the damping rules of vibration. The results show that, a certain length of straight lines can alleviate the vibration aroused in turnout and curve(turnout), length of straight lines connecting turnouts in different sections on main line was proposed to meet the demand of traveling stability, and shortening or cancelation of straight line for the scale limitation of station yard has less influence on operation safety of train.

关 键 词：high-speed RAILWAY station YARD STRAIGHT line TURNOUT dynamic theory LENGTH OPTIMIZATION 

分 类 号：U213.6[交通运输工程—道路与铁道工程]