Fabricated ballastless track

Abstract

The invention discloses a fabricated ballastless track. The ballastless track is formed through connection of a plurality of unit plates, each unit plate is formed through connection and anchoring of at least one prefabricated basic plate, and the unit plates can be formed, wherein the length of each unit plate can further meet field needs; in the prefabricated basic plates which are mutually connected two by two, the end of one of the prefabricated basic plates is provided with a protruding part protruding in the longitudinal direction, a bolt hole communicating with the upper surface of the basic plate is formed in the longitudinal end surface of the protruding part, a sunken part which is in the longitudinal direction and matched with the protruding part is formed in the end of the other one correspondingly connected basic plate, and a bolt hole communicating with the upper surface of the basic plate is formed in the longitudinal end surface of the sunken part; and a joggling structure is formed through matching of the protruding part and the sunken part which correspond to the two prefabricated basic plates, the two bolt holes in the joggling structure communicate with each other by utilizing bolts, and connection and anchoring of the two prefabricated basic plates are achieved. According to the fabricated ballastless track, an optimized and improved basic plate connecting mode is utilized so that the fabricated ballastless track which is simple in assembly, stable in structure and convenient to maintain can be obtained.

Description

technical field [0001] The invention belongs to the technical field of ballastless track, in particular to an assembled ballastless track. Background technique [0002] Ballastless track refers to the track structure that uses concrete, asphalt mixture and other integral foundations to replace the loose-grained gravel track bed. Compared with the ballasted track, the ballastless track avoids ballast splashing, has good smoothness, good stability, long service life, good durability, and less maintenance work, and is being used more and more. [0003] The structure of slab ballastless track mainly involves structures such as track slab, asphalt mortar or self-compacting concrete filling layer, base or supporting layer, wherein the base or supporting layer adopts concrete structure, and the asphalt mortar or self-compacting concrete filling layer laid on the base or supporting layer The layer is the structural layer for ballastless track structure adjustment and supporting for...

AI Technical Summary

Problems solved by technology

Due to the complexity of the flat longitudinal section of the line and the underlying structure under the rail, in the existing slab ballastless track structure, there are a large number of special-shaped slabs, which reduces the manufacturing efficiency of the factory; moreover, the structural dimensions of the standard slab and the special-shaped slab are different, which is inconvenient The stacking and transportation of track slabs and on-site assembly work, once the track slabs are damaged or damaged, the maintenance workload will be large

[0005] In addition, in the existing unit slab ballastless track structure, each track slab after laying and installation is independent. The disadvantage is that after the line runs for a period of time, the track slab and the asphalt mortar filling layer will peel off , the longitudinal end of the track slab is prone to warping, which will undoubtedly have an adverse effect on the stability, comfort and life of the track structure of the train

Although there are currently corresponding solutions to improve the connection method, it is still difficult to meet the stress deformation between the plates and the complex manufacturing process, and it is impossible to overcome the assembly of the entire ballastless track caused by too many special-shaped plates in the current ballastless track. , difficult maintenance and other issues

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