Magnetic suspension type ballastless track

Abstract

The invention discloses a magnetic suspension type ballastless track. The magnetic suspension type ballastless track is characterized in that steel rails are mounted at designated positions of track plates through fasteners; the vibration reduction layer is installed below the track plate and provides a certain vibration reduction effect for the track structure. An electromagnet is arranged between the track plate and the vibration reduction layer so that suspension of the track plate can be achieved, and the elevation of the track can be adjusted by adjusting the lifting repulsive force of the electromagnet. The base plate is located below the vibration reduction layer. The limiting structure penetrates through a reserved pile hole of the base plate and is used for limiting and adjusting the spatial positions of the track plate in the longitudinal direction, the transverse direction and the vertical direction. The laying precision requirement of the track structure in the construction stage can be met, and the adjustment requirement of different degrees of foundation deformation in the operation stage can also be met. Due to the arrangement of the magnetic levitation system, the interlayer mechanical state is effectively improved, and the interlayer disease problem can be avoided; the requirement on the interlayer flatness is obviously reduced; and a good vibration reduction effect is achieved.

Description

technical field [0001] The invention relates to the field of track structures, in particular to a magnetic levitation track structure. Background technique [0002] At present, the main form of track used in China's high-speed railway is ballastless track. Ballastless track is widely used in various backbone lines because of its uniform rigidity, firm structure and stable state, and it is still the key development and construction of high-speed railway in the future. track structure. However, the traditional ballastless track has always faced some problems in laying, service, maintenance and repair. For example, in the process of track laying, the quality of the prefabricated track structure components in the factory and the paving process of on-site construction are difficult to achieve smooth track structure. The vibration and noise generated during the operation of the train not only brought a bad ride experience to passengers, but also affected the normal life of the su...

AI Technical Summary

Problems solved by technology

However, the traditional ballastless track has always faced some problems in laying, service, maintenance and repair. For example, in the process of track laying, the quality of the prefabricated track structure components in the factory and the paving process of on-site construction are difficult to achieve a smooth track structure. The vibration and noise generated during the operation of the train not only brought a bad ride experience to passengers, but also affected the normal life of the surrounding residents; the track structure is prone to fatigue under the long-term fatigue load of the train and environmental factors. Structural damage that affects its durability and service life; when the track structure is damaged during operation, the repair and replacement of the damaged part will easily cause secondary damage to the track structure

[0003]Most scholars have conducted in-depth research on the problems faced by the above-mentioned traditional ballastless track in laying, service, maintenance and repair, and have also proposed more reasonable solutions. However, the flatness of the track structure during laying and maintenance, the vibration of the track structure during operation and interlayer disease, and the secondary damage to the track structure caused by maintenance and repair cannot be well resolved. How to overcome the existence of ballastless track The above problems have become a difficult problem for the further development of the track structure at this stage

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