Highway subgrade maintenance pavement crack pouring method

Abstract

The invention discloses a highway subgrade maintenance pavement crack pouring method which comprises the following steps that S1, manual cutting is conducted at the starting end of a pavement crack inadvance, a rectangular cutting groove with the set width is obtained, and the width of the rectangular cutting groove is 1.25-2 times of the average value of the actual width of the crack; S2, a maincutter of a grooving mechanism is placed in a groove which is cut in advance, and at the moment, the vertical distance between the highest point of the cutting track of an auxiliary cutter in the groove and a groove opening of the rectangular groove is not smaller than half of the depth of the rectangular groove; S3, when the vertical sliding rotating shaft drives the driving gear to move downwards, the driving gear ejects a pair of driven gears which are symmetrically arranged on the left side and the right side of the driving gear and have the reset function; S4, after cutting is completed,the cutting groove is purged and cleaned, and slag cuttings are removed; and S5, crack pouring glue is injected into the cutting grooves through a sprinkling irrigation device. When crack pouring isconducted according to the construction method, the repairing effect on pavement cracks is extremely good, and durability is longer.

Description

technical field [0001] The invention relates to the technical field of road engineering maintenance, in particular to a method for pouring joints in road surface for maintenance of road subgrade. Background technique [0002] As an important infrastructure in the city, urban roads are the channels for citizens to travel and live. Under normal circumstances, when overhauling urban roads with severe road surface damage, measures to stop traffic must be taken, and the cycle is long, which aggravates urban congestion to a certain extent, affects the smooth flow of urban roads and the lives of citizens, and cracks in the road surface It is the most common form of road disease. When it rains, rainwater enters the roadbed along the cracks, causing further damage or collapse of the road, thus shortening the service life of the road. Studies have shown that cracks are mainly divided into two categories according to different causes: one is the structural damage cracks caused by the ...

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Problems solved by technology

[0003] The problem to be solved by the present invention is to provide a roadbed maintenance road surface filling method for the above-mentioned shortcomings in the prior art, which effectively solves the problem that the interior of the road surface cracks, especially the inner bottom, is empty after filling the joints in the prior art. , Repair the problem of poor maintenance effect and insufficient durability

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