Highway asphalt pavement crack repairing apparatus and method

Abstract

The invention discloses a highway asphalt pavement crack repairing apparatus and method. The apparatus comprises a mobile device platform, and a crack slotting device and a repairing device which arearranged on the mobile device platform, and the crack slotting device and the repairing device are both rotationally fixed to the mobile device platform. A mechanical arm of the crack slotting deviceis used for controlling a taper twist drill to realize accurate positioning slotting of road cracks, and the slotting route can be consistent with the crack route, so excessive slotting is avoided, and the slotting precision is improved; and a repairing material heated by a preheating device in a repairing material tank is pumped into the formed slot time through a discharging pipe communicated with the repairing material tank, so the filling efficiency and the construction safety are improved. Automatic slotting, slot cleaning and crack pouring can be achieved, and compared with a traditionalprocess, the method of the invention is more efficient, safer and more reliable.

Description

technical field [0001] The invention belongs to the field of road repair, and in particular relates to a repairing device and a repairing method for road asphalt pavement cracks. Background technique [0002] Crack is one of the most common, most prone and earliest diseases in various types of damage to asphalt pavement. If the cracks are not repaired in time, rainwater will be poured into the pavement structure layer, which will evolve into more serious peeling, looseness, potholes and other diseases, which will greatly reduce the service life of the road. The current crack repair generally determines the repair process according to the width and depth of the crack, which is mainly divided into non-slot repair method (traditional repair method) and slot repair method. The traditional repair method is to pour the repair material directly into the crack. This method is more convenient, but due to the debris in the crack or the crack width is too small, the filler cannot be f...

AI Technical Summary

Problems solved by technology

However, there are many processes, and each process requires workers to operate different equipment to complete step by step. Sometimes in order to speed up the timeliness of maintenance operations, there may be irregularities in operation and non-strict implementation of operating procedures, resulting in unqualified crack repair quality and repeated maintenance. , not only increases the maintenance cost, but also frequent maintenance operations will cause a lot of inconvenience and unsafe factors in driving

In addition, the current grooving generally uses the saw method. When the crack shape is irregular, it is often difficult to follow the crack route

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