Quick fine tuning method for ballastless track of high-speed rail based on track deviation

A ballastless track and deviation technology, applied in track, track laying, track maintenance, etc., can solve the problems of long-wave irregularity correction ability, high construction cost, low operation efficiency, etc., to optimize track smoothness, measurement and solution The effect of high calculation efficiency and accurate detection

Active Publication Date: 2012-07-11
JIANGXI EVERBRIGHT MEASUREMENT & CONTROL TECH CO LTD
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AI Technical Summary

Problems solved by technology

This process takes the total station as the measurement core and aims to control the orbital coordinate position. Its technology is relatively mature, its rectification principle is clear, and it has the rectification ability of some long-wave irregularities, but its operation efficiency is low (≤600m / d) , Poor environmental adaptability (sensitive to temperature, light and wind speed), high construction cost (≥￥15000 / km)
In addition, the nominal accuracy of absolute measurement is ≤1″ in direction measurement and ≤1mm+2ppm in distance measurement, which means that this process is difficult to meet the smoothness requirements of high-speed rail ballastless tracks in the medium and short wave range

Method used

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  • Quick fine tuning method for ballastless track of high-speed rail based on track deviation
  • Quick fine tuning method for ballastless track of high-speed rail based on track deviation
  • Quick fine tuning method for ballastless track of high-speed rail based on track deviation

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Track smoothness data is associated with high-speed rail ballastless track slabs, as attached figure 1 As shown, the list of sleeper numbers is established according to the line data and imported into the track inspection instrument. After the system is initialized, the ID number of the current track slab is input; then the track inspection instrument is implemented to collect track smoothness data and automatically record the mileage; after the data collection is completed, enter the end point Track plate ID number, recalculate the track plate ID corresponding to each mileage, as shown in formula 5.

[0042] In this embodiment, when dealing with the track smoothness data recorded by the track tester and the track slab of the high-speed rail ballastless track, the track smoothness recorded by the track tester can be automatically recorded by using the high-speed rail ballastless track line data and the track tester marking function. The data is associated with the ID n...

Embodiment 2

[0046] To calculate the adjustment amount, firstly, the target value of the track smoothness state is obtained according to the line data, and the ride comfort data is to be imported into the iteration matrix (as shown in Equation 3), and the coordinate deviation under the inertial coordinates of the track is calculated.

[0047] The calculation process is attached figure 2 shown and illustrated with Gauss-Seidel iterations,

[0048]

[0049] in, f i (k) Department mileage location i Department k The coordinates under the inertial coordinates of the iteration. The iterative calculation converges to f i * . Substituting the result into formula 4, the mileage position can be obtained i The reference value of the adjustment amount at .

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Abstract

The invention provides a quick fine tuning method for a ballastless track of the high-speed rail based on track deviation, comprising the following steps of: correlating track smoothness data recorded by a track inspection tester with a track slab ID (identity); modeling track deviation of the ballastless track of the high-speed rail; and carrying out iteration solution on the integrated positive quantity of the ballastless track of the high-speed rail. After the method is used, the track deviation can be quickly, comprehensively and exactly tested by the track inspection tester, the recovery of the smoothness of the ballastless track of the high-speed rail is taken as a target, and the iteration solution is built, so that the numerical solution of the integrated positive quantity under an inertial coordinate system can be obtained. The method is capable of realizing integrative optimization for the smoothness of the track, free from the information of an external label, high in measurement efficiency and solution efficiency, and good in track slab ID positioning capability, thereby being suitable for the quick fine tuning and the routine servicing of the ballastless track of the high-speed rail.

Description

technical field [0001] The invention relates to a track smoothness control algorithm based on track deviation data, which is directly applied to the rapid fine-tuning and daily maintenance of ballastless tracks of high-speed railways. Background technique [0002] In view of the characteristics of high stability, high smoothness and low maintenance of ballastless track, the "Code for Design of High-Speed ​​Railways" suggests that the track structure of high-speed railways should adopt a full-line seamless and ballastless track structure. But at the same time, as a new track structure, the ballastless track is highly experimental. Through the laying and use of high-speed railways such as Beijing-Tianjin, Wuhan-Guangzhou, Zhengxi and Beijing-Shanghai, my country has achieved certain results in track laying and completion, forming a technical system with Chinese characteristics. However, there is no mature and reliable rectification technology to control the smoothness of the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01B29/00E01B35/00
Inventor 陶捷朱洪涛
Owner JIANGXI EVERBRIGHT MEASUREMENT & CONTROL TECH CO LTD
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