Assembly type pavement structure and construction method

A prefabricated pavement technology, applied to roads, roads, and pavements paved with prefabricated blocks, etc., can solve the lack of integrity and adjustment ability of the pavement structure, pretensioning prestressing technology is not considered, and assembly construction is inconvenient and other problems, to achieve high-efficiency assembly construction design, enhance adjustment and repairability, and solve the effect of difficult quality assurance

CN112626962APending Publication Date: 2021-04-09CHINA RAILWAY ERYUAN ENG GRP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2021-04-09

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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.
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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...

Examples

Embodiment Construction

[0052] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0053] refer to figure 1 and Figure 7 , a prefabricated pavement structure of the present invention, the prefabricated pavement panel 30 is assembled on the subgrade 10 to form a prefabricated pavement. The prefabricated path panel 30 adopts prestressed reinforced concrete structure, and each precast path panel 30 is provided with vertical lower grooves 31a at intervals along the width direction at two longitudinal connection ends, and horizontal lower grooves 31b at intervals along the width direction at two transverse connection ends. Two adjacent castor panels 30 are provided with rod-shaped connecting members in corresponding longitudinal lower grooves 31a or transverse lower grooves 31b. An isolation layer 11 is laid on the surface of the roadbed 10, and after the prefabricated road panel 30 in assembly is leveled, self-compacting concrete is de...