Integrated filling prefabricated slab damping track structure

Abstract

The invention provides an integrated filling type prefabricated slab damping track structure which comprises a prefabricated slab body. A rail and fasteners for fixing the rail are arranged on the upper surface of the prefabricated slab body. The cross section of the prefabricated slab body is in a polygon shape arranged symmetrically or asymmetrically so as to adapt to the cross sections of different tunnels at the bottom. Slope structures in a corner cut form are adopted in the two sides of the bottom of a track board. A non-prestress reinforced concrete structure is adopted in the prefabricated slab body. At least two conical through holes are formed in the prefabricated slab body along the center line of the slab. Magic caps are arranged in the through holes. The integrated filling type damping prefabricated slab structure can restrain shear damage to a limiting device from dynamic force generated to the track board due to temperature change, train starting, brake force and small radius curve transverse deformation, and stability of the structure is protected; the track board and an elastic element are isolated effectively, and therefore mechanical connection of the concrete structure is avoided.

Description

technical field [0001] The invention relates to the field of track structures of urban rail transit, in particular to an integrated filling type prefabricated plate damping track structure. Background technique [0002] With the large-scale network development of urban rail transit, especially the underground lines have more and more demands on the vibration reduction of the track structure, and the vibration reduction requirements are becoming more and more stringent. The section size of the traditional underground line is small, and the construction work surface is narrow, which makes it impossible for large-scale equipment to start construction. Only the construction method of artificial cast-in-place concrete can be used to complete the pouring of the ballast bed, which brings low construction accuracy, slow construction efficiency, and A series of problems such as poor vibration reduction effect. [0003] Although the prefabricated slab track structure has been widely ...

AI Technical Summary

Problems solved by technology

The section size of the traditional underground line is small, and the construction work surface is narrow, which makes it impossible for large-scale equipment to start construction. Only the construction method of artificial cast-in-place concrete can be used to complete the pouring of the ballast bed, which brings low construction accuracy, slow construction efficiency, and A series of problems such as poor vibration reduction effect

[0003] Although the prefabricated slab track structure has been widely used and developed in high-speed rail, it cannot be directly quoted due to the small tunnel section, small curve radius, poor visibility conditions, and lack of construction equipment suitable for its external conditions in urban rail transit. High-speed rail technology

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