A construction method integrating prefabrication and installation of baffles for urban viaducts

Abstract

The invention discloses a prefabrication and installation integrated urban viaduct baffle construction method. The prefabrication and installation integrated urban viaduct baffle construction method comprises taking the top surface of a viaduct beam, which is completed through prefabrication and installation or cast-in-place construction, as a prefabricating field of baffles; in a route direction, on the top surface of the viaduct beam, sequentially setting a baffle prefabricated member maintenance and installation area, a baffle concrete pouring area, a baffle steel reinforcement cage installation area and a baffle formwork consolidating area; arranging at least one production line onto the top surface of the viaduct beam, and at least mounting one cantilever type gantry crane moving along tracks onto every production line; performing transportation of baffle formworks and the tracks, installation of steel reinforcement cages, pouring of concrete and demolding and installation of baffle prefabricated members. The installation processes above are implemented in the route direction in a circular advancing mode to complete prefabrication and installation of the baffles. The prefabrication and installation integrated urban viaduct baffle construction method has the advantages of solving the problem of restriction of prefabricating fields in urban areas, effectively reducing interference of baffle construction with urban traffic and further reducing the construction cost.

Description

Technical field [0001] The invention relates to the field of construction technology, and in particular to a construction method that integrates prefabrication and installation of urban viaduct baffles. Background technique [0002] The civil engineering test bid of Kunming Metro Line 2 has a total length of 5km. It starts at Century City Station, goes south along Caiyun Road, and ends at Kunming South Passenger Transport Station. The entire line is located in the central green belt 10m wide in the center of Caiyun Road. It adopts the form of a viaduct with prefabricated concrete baffles on both sides of the viaduct. The baffle is 2m long, 1.75m high, with an area of ​​3.5m2 and a volume of 0.8m 3 , Weighs about 2t. [0003] Considering the construction period and engineering quantity of the baffle, the project needs a land area of ​​about 3000m 2 The site is used as a prefab site. The rents for plots in nearby urban areas are high. If a prefabrication yard is set up in the subur...

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Problems solved by technology

[0004] For this reason, the project department combined the site conditions and aimed at the difficulties and risks of the prefabricated site and traffic diversion, the difficulty and slow progress of the installation of the baffle by the crane, and the traffic control problems faced by the baffle transport vehicles entering the city.

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