Bituminous pavement local repairing structure and repairing method

Abstract

The invention discloses a bituminous pavement local repairing structure and a repairing method. The bituminous pavement local repairing structure comprises a prefabricated module; the prefabricated module adopts a wedge-shaped body; the four side surfaces of the prefabricated module are uniformly changed slope surfaces; the prefabricated module is poured by using concrete; a distribution steel structure is arranged in the position, which has a certain distance from the top surface, in the prefabricated module; a vertically downward dowel is arranged in the position of each crossed point of thedistribution steel structure; the top of the dowel is bent downwards in the position of a node connected with the distribution steel structure; an extending section, at the bottom of the prefabricated module, of the dowel is inserted into a bed course of a roadbed; and the embedded prefabricated module and the bed course mutually bear forces. The bituminous pavement local repairing structure canbe used for rapidly repairing bituminous pavements after the bituminous pavements are locally damaged; and the bituminous pavement local repairing structure has the advantages that the durability in use is good, the construction speed is high, the road linkage is good, the appearance and color are consistent and the damaged bituminous pavement can be rapidly replaced; and meanwhile, the repairingmethod has the advantages of simple construction process and low cost.

Description

technical field [0001] The invention belongs to the technical field of asphalt pavement repair construction, and in particular relates to a partial repair structure and repair method of asphalt pavement. Background technique [0002] Asphalt pavement has the advantages of stable driving, low noise, high comfort, high tire adhesion, and safe driving at night. Therefore, it has a wide range of applications in urban roads. Under normal use and maintenance, the service life is relatively high. However, for specific areas in urban roads, due to various reasons, asphalt pavements are prone to local damage, such as (rapid) bus stops, red street light intersections, road sprinkler water intake points, etc., where the frequency of use is high and the vehicle load is large , the asphalt road surface is repeatedly rolled by the wheels, under the action of frequent braking and starting, the wheels will generate a large shear force on the road surface, and at the same position, under the...

AI Technical Summary

Problems solved by technology

However, for specific areas in urban roads, due to various reasons, asphalt pavement is prone to local damage, such as (rapid) bus stops, red street light intersections, road sprinkler water intake points, etc., where the frequency of use is high and the vehicle load is large , the asphalt road surface is repeatedly rolled by the wheels, under the action of frequent braking and starting, the wheels will generate a large shear force on the road surface. Partial damage occurs, especially for BRT stations, where tires often stop at very certain locations, and the pavement under the tires is prone to damage, while the asphalt pavement in other locations is relatively intact. These local points have a limited damage range, but the damage is serious and Vehicles have to pass through the damaged point, therefore, the partially damaged asphalt pavement seriously affects the driving comfort

[0003] There are two conventional treatment methods: one is to dig out the damaged pavement and replace it with new asphalt, but because the strength of the asphalt pavement itself is low and the interface has already occurred, the replaced asphalt pavement will soon be damaged again; the other is The cement concrete pavement with high strength is poured on site, but the maintenance time of the cast-in-place cement pavement is long, which seriously affects the traffic, and the color difference between the cement pavement and the asphalt pavement is large, which affects the appearance and cleanliness of the road. At the same time, the interface between the two stiffness pavements is not easy to handle

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