Assembly type pavement structure and construction method

Abstract

The invention discloses an assembly type pavement structure and a construction method, and aims to effectively improve the connection safety, the adjustment capability and the repairable capability of a prefabricated pavement, facilitate the manufacturing and transportation of the prefabricated pavement, and facilitate the assembly, repair, replacement and construction. Prefabricated pavement slabs are assembled on a roadbed to form an assembled pavement, each prefabricated pavement slab is of a prestressed reinforced concrete structure, longitudinal lower grooves are formed in the two longitudinal connecting ends of each prefabricated pavement slab at intervals in the width direction, and transverse lower grooves are formed in the two transverse connecting ends of each prefabricated pavement slab at intervals in the width direction. Rod-shaped connecting components are arranged in the corresponding longitudinal lower grooves or the corresponding transverse lower grooves of every two adjacent prefabricated pavement slabs. An isolation layer is laid on the surface of the roadbed, after the assembled prefabricated pavement slab is leveled, self-compacting concrete is densely poured into a gap between the laid isolation layer and the prefabricated pavement slab to form an adjusting layer, and positioning bosses which protrude upwards and are embedded into longitudinal lower grooves and transverse lower grooves of the prefabricated pavement slab are formed on the adjusting layer.

Description

technical field [0001] The invention relates to traffic roadbed facilities, in particular to an assembled pavement structure and construction method for highways and airport tracks. Background technique [0002] In the current construction of traffic projects such as highways and airport tracks, most of the cast-in-place concrete pavement structures are used, the road construction process is low in automation, the on-site construction period is long, labor-intensive, and does not have the ability to be recycled for secondary use. The surrounding environment produces certain pollution. [0003] Prefabricated pavement is a new pavement concept proposed to overcome the shortcomings of traditional concrete pavement. The prefabricated pavement is factory-prefabricated and has sufficient strength and rigidity, good climate stability, smooth surface, anti-slip surface, Due to its durability and rapid repairability, it has gradually attracted more and more attention from domestic a...

AI Technical Summary

Problems solved by technology

[0007] 1. The connection between adjacent prefabricated road panels mainly depends on the tie rods and dowel bars and the concrete poured in their installation slots, and the connection safety is poor; and before the assembly construction, only a thin layer of cement is poured on the bottom of the slab Mortar, the effect of this layer of mortar is limited to leveling the surface of the roadbed, the pavement structure lacks integrity and adjustment ability, and the repair ability is weak;

[0008] 2. The pretensioning prestressing technology is often not considered in the design and manufacture, resulting in thick boards and low transportation efficiency;

[0010] 4. The panel type of the prefabricated channel is usually divided into A and B panels. A panel is prefabricated with a dowel rod, and the B panel is provided with a corresponding slot. Pouring, lack of interchangeability, brings inconvenience to assembly construction

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