Research On Some Technical Problems Of The Track Regularity Of High-Speed Railway

At present, China having been put into operation high-speed railway mileage has reached more than 7000km, as well as ten thousand kilometers of high-speed railway (250km per hour or more) under construction. High-speed railway traffic speed, requiring Track Regularity better. In order to ensure that the ride track meet the demands of high speed traffic, currently is the general way in precision measuring network control, by track inspection car track ride the parameters measured, and compare to design parameters and fine tuning makes the track by track by ride the parameters meet the design requirements. Measuring rail ride what are parameters? How these parameters and the definition of measurement and calculation? Is key to design and manufacture of rail detecting car technology, therefore this article related to rail ride comfort measurement technique to study with real-world significance.This first study on the traditional track measuring principle and calculation method of ride comfort parameters, Went on to discuss in detail modern rail ride comfort measurement method of ride comfort and track various parameters of the calculation model, Rail that is involved in important parameters both high and low orbit and to ride Germany's standard and calculation methods and standards in China and its calculation method, The last calculated based on the mathematical model and calculation method for the derivation of the parameters of the section of track test track ride, And than on the results of a calculation of track inspection car, to verify the correctness and the feasibility of the mathematical model and calculation method of derivation.Main scholarly contribution is this article the following two points:1) Describes how to CPIII measured under control network coordinates associated with mileage of track design and its design parameters, and how the track measured coordinates calculation of coordinates of the track centre line;2) By comparing Germany and alignment and high and low calculation method and results in China, the two methods have their own advantages, can complement one another, in order to fully truly reflect the track alignment and high and low, track inspection should be used for evaluation and analysis of two methods.