Structural deformation observation and data processing method at operation and maintenance stage of high-speed train

A technology for operation and maintenance and high-speed railways, applied in surveying and navigation, height/horizontal measurement, measuring devices, etc., can solve problems such as difficult to restore the state, no longer applicable to the operation period, and height failure

CN102506809AActive Publication Date: 2012-06-20CHINA RAILWAY FIRST SURVEY & DESIGN INST GRP
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2012-06-20

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Abstract

The invention relates to a structural deformation observation and data processing method at the operation and maintenance stage of a high-speed train. Though a structural deformation observation and data processing at a construction period can predict under-track settlement, the method has adaptability-related problems in the structural deformation monitoring at an operation period. The method comprises the steps of: laying reference points, deformation monitoring points and characteristic section points at two levels; conducting rigorous constraint adjustment to calculate the heights of the reference points, the deformation monitoring points and the characteristic section points; under the situation that the deformation monitoring points are broken or lost, conducting broken height repair to actually measured height difference to eliminate high-difference mutation errors caused by broken height; and calculating actually measured height difference between two adjacent monitoring points, directly adopting the actually measured height difference to conduct differential deformation analysis to the adjacent deformation monitoring points and calculating current additional gradients, accumulated additional gradients, gradient difference and accumulated gradient difference of a line. The structural deformation observation and data processing method at the operation and maintenance stage of the high-speed train has the advantages that the field observation workload is reduced, the differential deformation is accurately and intuitively reflected and comprehensive suggestions are made for the safe operation of railways.
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Description

technical field

[0001] The invention relates to a method for monitoring deformation of a railway structure, in particular to a method for observing and processing data of a structure deformation during the operation and maintenance phase of a high-speed railway. Background technique

[0002] In recent years, my country's high-speed railway construction has entered a stage of rapid development, especially the large-scale application of ballastless track technology in high-speed railways, which puts forward higher requirements for the structural deformation control of the line. At present, the structural deformation observation and data processing methods during the construction period have made clear requirements in the current codes and regulations, and the application in the construction process has gradually matured. Its main purpose is to predict the final settlement of the offline project and the post-construction Settlement, reasonable determination of ballastless track...

Examples

Embodiment Construction

[0027] The present invention will be described in detail below in combination with specific embodiments.

[0028] Considering that the working base point was severely damaged during the construction of the high-speed railway, it is difficult to restore the original state after re-embedding, and there are certain difficulties in the preservation and maintenance of the working base point during the operation period. After rigorous theoretical derivation and simulation calculation analysis, A new method of two-level network deployment and deformation observation for the deformation monitoring network during the operation period is proposed according to the reference point and the deformation monitoring point.

[0029] Network deployment method: the reference point network is laid out along the line, and a reference point is arranged every 1km or so, and the line leveling base points laid out during the construction period are used as much as possible, and the laying specification...