Optimization calculation method of alignment adjustment scheme of vertical section of high-speed railway in operation

Abstract

The invention discloses an optimization calculation method of an alignment adjustment scheme of the vertical section of a high-speed railway in operation, which takes into account the alignment control requirements of high speed railway profile and the adjustable range limits of adjustment measures, and which obtains an optimized alignment adjustment scheme by constructing a series of optimizationmodels such as a single slope adjustment optimization test model, a multi-slope section optimization calculation model, a whole slope section set range optimization calculation model and a vertical curve optimization calculation model and by optimization and solving. The method includes the following steps: S1, acquiring the profile data of high-speed railway; S 2, setting that profile control parameters of the vertical section of the high-speed railway; S3, carrying out slope adjustment optimization test of single slope section of high-speed railway vertical section; S4, carrying out slope adjustment optimization calculation of multi-slope section of high-speed railway vertical section; S5, carrying out slope adjustment optimization calculation of the whole slope section of the high-speed railway vertical section; S6, carrying out optimization calculation of vertical curve of high-speed railway vertical section. The optimized adjustment scheme obtained by the invention can meet the high-speed railway alignment restriction conditions in the adjustable range, at the same time, the ride comfort of the line can be improved to the maximum extent, and the line renovation engineering quantity can be reduced. The method can be widely used in the optimized design of the alignment adjustment scheme of the vertical section of the operation high-speed railway.

Description

technical field [0001] The invention relates to an optimization calculation method for an adjustment scheme of a longitudinal section alignment of an operating high-speed railway, and belongs to the field of settlement regulation and maintenance of an operating high-speed railway. Background technique [0002] The operating mileage of my country's high-speed rail has exceeded 25,000 kilometers. With the rapid increase in the operating mileage of high-speed rail and the passage of time, the workload of high-speed rail maintenance and renovation has also increased rapidly. In particular, affected by factors such as ground subsidence, construction precipitation, and piled loads in areas along the high-speed railway, the settlement and deformation of some high-speed railway sections have exceeded the specifications, which directly affects the rapid, stable and safe operation of the high-speed railway. The alignment of the high-speed rail is adjusted to restore the smoothness of ...

AI Technical Summary

Problems solved by technology

[0004] Aiming at the problem of alignment adjustment of the vertical section of the operating high-speed railway, in order to solve the current problems of repeated adjustment and verification of each slope section by personal experience, low design efficiency, and insufficient optimization of the quality of the adjustment plan, the present invention provides a method that can comprehensively consider the entire line alignment. Control index requirements, within the limit of the adjustable amount of the repair measures, the optimal calculation method of the adjustment plan to maximize the smoothness of the track and reduce the amount of renovation works

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