New-old road overlap joint reflective crack construction machinery and pavement construction method

Abstract

The invention relates to new-old road overlap joint reflective crack construction machinery. The new-old road overlap joint reflective crack construction machinery comprises a bracket arm arranged ona moving vehicle, the bracket arm is rotatably provided with a milling wheel, a wheel core of the milling wheel is horizontally arranged and connected with a drive mechanism, the drive mechanism drives the milling wheel to rotate, cutting disc cutters are arranged on the two sides of the front of the milling wheel, disc cores of the cutting disc cutters are horizontally arranged and connected witha power mechanism, the power mechanism drives the cutting disc cutters to rotate, in the process of the moving vehicle supporting and sending the cutting disc cutters to move, the power mechanism drives the cutting disc cutters to rotate, thus joint cutting operation is achieved, the drive mechanism drives the milling wheel to rotate, thus excavation operation of pavement between two cracks is achieved, after joint cutting is completed by the cutting disc cutters, a crack groove used for overlapping of a new pavement and an old pavement can be formed, and thus the construction efficiency canbe effectively improved through the construction machinery.

Description

technical field [0001] The invention relates to the field of engineering construction, in particular to a construction machine for lapping reflective cracks between old and new roads and a road surface construction method. Background technique [0002] In road construction projects, semi-rigid materials are mostly used as base materials, among which cement-stabilized gravel has high strength and good water stability, and is widely used in road construction. However, cement-stabilized gravel is used as the base material. The disadvantage is that it is prone to dry shrinkage and temperature shrinkage cracks, which accompany the entire service life of the road and aggravate with the increase of road age, thereby causing reflective cracks on the road surface. [0003] In road maintenance projects, concrete is often used to fill the milled potholes at the cracks, but the joint between the new and old pavement bases after filling forms a seam, which is easy to cause reflective cra...

AI Technical Summary

Problems solved by technology

However, cement-stabilized gravel is used as the base material, and the disadvantage is that it is prone to dry shrinkage and temperature shrinkage cracks, which will aggravate along with the road's entire service life and increase with the age of the road, thereby causing reflective cracks on the road surface

[0003] In road maintenance projects, concrete is often used to fill the milled potholes at the cracks, but the joint between the new and old pavement bases after filling forms a seam, which is easy to cause reflective cracks on the road surface, resulting in repair The road at the end was destroyed again, and the above-mentioned cracks were cut with a hand-push seam cutting machine to cut the road surface at the cracks for filling seams. The type seam cutting machine needs to open two seams, and then it needs to use a breaker to break the roadbed between the two seams, and finally use manual or excavating equipment to excavate the broken roadbed to realize the new construction. The construction at the junction of the old road surface, the above-mentioned construction efficiency is low

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