Rapid pavement restoration method

Abstract

The invention relates to a rapid pavement restoration method, which comprises the following steps: a. using ground penetrating radar to detect a subgrade void position of a damaged pavement, marking the leak location on the pavement, and determining a settlement position; b. marking grouting hole positions near the underground cavity, deep cavity or a water layer, and drilling and installing a grouting pipe on the grouting hole positions; c. grouting into the pipe and conducting real-time monitoring of on the uplift condition of the pavement layer; d. after grouting, using ground penetrating radar to detect void, seepage and settlement in subgrade, and conducting re-drilling and grouting on the positions with the above conditions; and e. after the grouting, sealing and cleaning the grouting holes. Through the combination of defect detection by ground penetrating radar and grouting on defect positions, the method rapidly determines the damaged positions on the subgrade and restore the subgrade through grouting, so as to achieve the purposes of high restoration efficiency and good effect.

Description

technical field [0001] The invention relates to a method for quickly repairing the road surface, which can prolong the service life of the concrete road surface. Background technique [0002] The existing pavement includes concrete pavement and asphalt pavement. Under the action of frequent wheel loads, due to the hollow, loose and non-compacted parts of the roadbed, the pavement has cracks, wrong platform, void, mud pumping, subsidence and other diseases. . The solutions to this situation in the prior art include: (1) After cracks appear, asphalt or concrete slurry is injected along the cracks to repair cracks or add asphalt layers. Under the action of frequent wheel loads, the disease will continue to develop, so the effectiveness and durability of this method are poor and the symptoms are not cured; (2) With the further development of the disease, the traffic is interrupted and the construction is carried out by disembowelling and re-construction (3) Using the urban asp...

AI Technical Summary

Problems solved by technology

The solutions to this situation in the prior art include: (1) After cracks appear, asphalt or concrete slurry is injected along the cracks to repair cracks or add asphalt layers. Under the action of frequent wheel loads, the disease will continue to develop, so the effectiveness and durability of this method are poor and the symptoms are not cured; (2) With the further development of the disease, the traffic is interrupted and the construction is carried out by disembowelling and re-construction (3) Using the urban asphalt pavement repair structure and its construction method such as the Chinese Patent Document No. CN102817299A to crush the road surface After treatment, deep repair is carried out. The construction process of this method is complicated, time-consuming, and has a great impact on traffic. It will also generate noise and a large amount of dust, which is not conducive to environmental protection.

Images