Self-leveling assembled steel-concrete composite track structure

Abstract

The invention discloses a self-leveling assembled steel-concrete composite track structure, which comprises: a base plate formed on a supporting foundation by on-site casting, and a factory prefabricated steel-concrete track unit is arranged on the base plate. The self-leveling assembled steel-concrete composite track structure also includes a self-leveling buckle anchor system, the lower end of which is embedded in the base plate, and the upper end protrudes through the prefabricated steel-concrete track unit to connect the base plate and The prefabricated steel-concrete track units are connected into a detachable monolithic structure, and the fabricated steel-concrete composite track structure is leveled. In the structure of the present invention, the track plate adopts a steel-concrete composite structure, the overall structure is stable, the structure interface is less, the disease is less, and it is easy to maintain; the self-leveling buckle and anchor system can be adjusted in a large amount, and the ability to adapt to the lower support structure and the environment is strong, especially It is suitable for laying on large-deformation support structures such as long-span bridges.

Description

Self-levelling fabricated steel-concrete composite track structure technical field The present invention relates to the technical field of rail transit, in particular, to a kind of self-leveling assembled steel-concrete composite rail Road structure. Background technique [0002] The development of my country's high-speed rail technology has grown from scratch, from weak to strong, and has gone through four stages. After more than 20 years of continuous efforts China has become the world's high-speed rail system with the most complete technology, the strongest innovation capability, the longest operating mileage, and the fastest operating speed. Fast, under construction The largest country. By the end of 2020, the operating mileage of my country's high-speed railways has exceeded 35,000 kilometers. "Medium and Long-Term Railway Network Planning (2016)" and "Twelfth Five-Year Plan for Comprehensive Transportation System", my country will continue to A certain scale o...

AI Technical Summary

Problems solved by technology

[0009] The invention provides a self-leveling assembled steel-concrete composite track structure to solve the problem of large wet work workload and poor quality stability during the construction of the existing ballastless track structure; Weak environmental performance; prone to interface damage, poor stability and service life of the track structure during service; technical problems such as difficult maintenance and repair of track slabs, and difficulty in replacement

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