Novel tongue-and-groove assembly type pavement slab and maintenance and replacement method of assembly type pavement

Abstract

The invention provides a novel tongue-and-groove assembly type pavement slab and a maintenance and replacement method of a assembly type pavement slab, the load transfer advantage of tongue-and-groove tenon-and-mortise joints can be fully played, and meanwhile rapid replacement and maintenance of the tongue-and-groove assembly type pavement slab can be achieved. The slab comprises rectangular plate bodies which are spliced to form a pavement, dowel bars are embedded in the two side walls of the rectangular plate bodies in the length direction at intervals in the width direction, the dowel bars of every two adjacent rectangular plate bodies in the length direction are correspondingly welded and connected, and splicing of the rectangular plate bodies in the transverse direction of the pavement is achieved; a connecting tenon and a connecting groove which correspond to each other are respectively arranged on the left side wall and the right side wall in the width direction of each rectangular plate body, and the connecting tenons are clamped into the connecting grooves of the rectangular plate bodies, so that the two adjacent rectangular plate bodies are longitudinally assembled on the pavement; or connecting grooves are formed in the left side wall and the right side wall of each rectangular plate body in the width direction, and a grouting connecting cavity formed by the corresponding connecting grooves of every two adjacent rectangular plate bodies is filled with a crack pouring material to form a high-strength clamping tenon, so that the two adjacent rectangular plate bodies are spliced in the longitudinal direction of the pavement.

Description

technical field [0001] The invention relates to traffic roadbed facilities, in particular to an assembled pavement structure and a maintenance and replacement method for highways and airport tracks. Background technique [0002] The main disadvantage of the traditional cast-in-place cement concrete pavement is that it is difficult to maintain. If the pavement is damaged, there will be corner breaks, dislocations, cracks, etc., and it is difficult to repair quickly. Even if fast setting early-strength cement is used, it will take at least 8h to 10h During construction, it is impossible to quickly open traffic, and it is difficult to meet the requirements of busy highway traffic sections and airports without stopping. [0003] The most effective means to solve the above problems is to adopt prefabricated pavement technology. The development of prefabricated pavement technology has also brought us new problems, the key point of which is how to solve the connection and load tra...

AI Technical Summary

Problems solved by technology

Among them, the load transfer method of tongue-and-groove mortise and tenon can effectively improve the load transfer capacity of the joints and the uniformity of force transfer. However, when some panels need to be replaced for maintenance, it is difficult to take out the road surface due to the tight mortise and tenon joints between the panels. and put back, so it is difficult to repair the pavement panel, so it has not been widely used in the prefabricated pavement

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