Research On Dynamic Analysis Of Track Alignment For High-Speed Railway

The effects of track alignment of high speed railway on the running safety and ride comfort are enlarged significantly with the remarkable increase of the running speed.In China,the conventional research method on alignment parameters do not consider the dynamic interaction between the train and track,which is based on the driving dynamics theory,and thus the relationship between track alignment and running quality cannot be described accurately.In China,the high demand on the track alignment is put forward,and the high standard high-speed railways are built in recent years.With the improvement of design level and accumulation of design experience of high-speed railway,how to choose a more affordable technical standard of track alignment for high-speed railway with different speed grades on the basis of guaranteeing safety and comfort is still a question need to be explored and perfected continuously.The dynamic simulation method is used in this paper.Firstly,the key parameters of high-speed railway is analyzed,and then reasonable values of key route alignment parameters are proposed.Then,the dynamic analysis and evaluation to the alignment scheme of the test section of Beijing-Shenyang high-speed railway is performed,in which a higher speed comprehensive experiment will be carried out.The results of this study can provide a reference for the determination of the parameters of high-speed railway,and the dynamic simulation of the Beijing-Shenyang high-speed railway alignment scheme can provide useful reference for the design and optimization of other railway projects.