Polymer grouting construction technology

Abstract

The invention discloses a polymer grouting construction technology. A grouting pavement is subjected to traffic control, the position of a grouting hole is marked, detection before grouting is performed, a grouting pipe is lowered after drilling, a grouting cap is mounted, a polymer is conveyed to the grouting pavement through the grouting pipe, grouting pressure is controlled, pressure is kept until the polymer is cured, the hole is sealed after detection, the environment is cleaned, and traffic is opened. In the construction method, the grouting pavement cannot be damaged because the grouting hole is small, maintenance is not needed, so that the traffic can be opened immediately, and influence on the traffic is small. Besides, expansion ratio of the polymer can reach 20:1, so that cavities can be filled, water can be extruded and surrounding media can be compacted rapidly, meanwhile, the cured polymer material is stable in performance and waterproof and can seal cracks and joints, and service life can be 5 years or longer. In the technology, grouting amount is controllable, equipment requirements are low, and traffic maintenance cost is lower.

Description

technical field [0001] The invention relates to the technical field of grouting engineering, in particular to a high polymer grouting construction technology. Background technique [0002] The Guangzhou North Ring Expressway is one of the first expressways in my country to be completed and opened to traffic. The average daily traffic volume is more than 300,000. The traffic is very busy. This disease, on the other hand, the increase in road maintenance will lead to a lot of congestion. The North Ring Expressway adopts a composite pavement structure of asphalt pavement + cement board + water-stabilized base, and the void at the bottom of the concrete pavement is a common defect. The void at the bottom of the slab is the main cause of the asphalt surface layer's diseases such as pumping and cracking, and directly causes the instability of the soil subgrade. In the past, the cement grouting process took a long time to maintain health and had a great impact on traffic. Conten...

AI Technical Summary

Problems solved by technology

[0003] In order to solve the technical problem of inconvenient transportation caused by the cement grouting process due to the long curing time, the present invention proposes a high polymer grouting construction process, through which the high polymer can be quickly molded and solidified in a short time, greatly reducing the construction process. Impact on road traffic