Novel fully prefabricated track structure used for tunnel in railway track field

Abstract

The invention discloses a novel fully prefabricated track structure used for a tunnel in a railway track field. The structure comprises track slabs, an elastic modulus cushioning layer, prefabricatedassembly blocks and an adjusting layer which are laid from top to bottom, steel rails are laid on the track slabs, the adjusting layer is laid on a shield segment, the prefabricated assembly blocks are laid between the adjusting layer and the track slabs and laid along the steel rails, the bottom surfaces of the track slabs are supported and laid on the prefabricated assembly blocks, and high-strength concrete templates are fixed with the bottoms of the inner side wall surfaces of the prefabricated assembly blocks; the elastic modulus cushioning layer is arranged between the bottom surfaces ofthe track slabs and the top surfaces of the prefabricated assembly blocks, and rigid connecting protection of the track slabs is achieved and force transmission channels are formed through the elastic modulus cushioning layer. According to the structure, factory prefabrication can be achieved, the assembly and dismantling of the structure are convenient, the manufacturing is efficient, the prefabrication precision is higher, the construction process is greatly improved, the construction adjustment is convenient, the arrangement condition of ditches is excellent, and the maintaining, repairingand spare part replacing in an operation period are convenient.

Description

technical field [0001] The invention belongs to a track structure in the technical field of ballastless tracks, and in particular relates to a novel fully prefabricated track structure used for tunnels in the field of railway tracks. Background technique [0002] At present, the prefabricated track structure should be one of the key directions of track structure research in the future due to its characteristics of "high degree of mechanization, fast construction speed, more flexible track laying base setting, good quality control of prefabricated products, and convenient maintenance and repair", and it is also the improvement of track structure quality. , Convenience of construction and important technical measures to solve the needs of convenience of maintenance and repair. [0003] Based on the necessity of research and development of prefabricated track structure technology system, many places in China have successively tried to adopt slab track structure and frame track ...

AI Technical Summary

Problems solved by technology

[0003] Based on the necessity of research and development of prefabricated track structure technology system, many places in China have successively tried to adopt slab track structure and frame track structure in non-vibration-absorbing areas. During this period, it was shown that the composition of the track structure is relatively complicated and the degree of factory prefabrication is not high. , On-site implementation is difficult, construction progress is slow, etc.

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