Construction method for precast type vibration damping track board

Abstract

The invention relates to a construction method for a precast type vibration damping track board. The construction method comprises the steps such as track board prefabrication, plate cushion compounding, transportation, lifting and unloading, track board positioning, concrete pouring, concrete maintaining, accessory buckling, steel rail laying and the like. The method adopts an inverse construction method from top to bottom, so that no-rail type laying of the track board is realized; and the track board laying precision is high, the construction progress is quick and the labor intensity is low.

Description

technical field [0001] The invention relates to the field of track structures of rail traffic, in particular to a construction method for a prefabricated damping track slab for rail traffic. Background technique [0002] The track structure is an important basis for providing guidance for train operation, and it is also one of the main components to ensure the safety of train operation. With the development of rail transit towards a large-scale network, there are fewer and fewer existing route selection conditions, and more and more areas passing through residential areas, ancient buildings, and precision instruments. Vibration-reducing rails are a method to control vibration hazards from the source of vibration , more and more widely used in rail transit. In the construction of the new line of the Beijing Subway, the proportion of the length of the damping track section has increased from the original 5% to more than 50%. [0003] The traditional vibration damping track s...

AI Technical Summary

Problems solved by technology

[0003] The traditional vibration-absorbing track structure generally adopts the construction method of manually pouring the base, laying the rail row, tying the steel bars, laying the vibration isolation material, and pouring the concrete on site. , the construction progress is slow (the average progress is 25m~50m / day), and a large number of manual operations have brought about low operating efficiency (currently, the construction time of the vibration-reducing track has become an important part of the construction period of the track project.

), high safety risks, poor construction accuracy, and high overall cost. At the same time, poor construction accuracy has brought secondary problems such as track corrugation, bolt breakage, and vehicle component damage during the operation period.

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