Road base reinforcing high-polymer loading and grouting method

A technology of road base layer and high polymer, which is applied in the field of rapid maintenance of high polymer grouting, which can solve the problems of poor durability and achieve good durability, cost saving and good effect

Active Publication Date: 2011-04-27
王复明
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Cement pressure drop has a certain effect on subgrade reinforcement, but for base reinforcement, especially when the base is loose, the durability is poor

Method used

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  • Road base reinforcing high-polymer loading and grouting method
  • Road base reinforcing high-polymer loading and grouting method
  • Road base reinforcing high-polymer loading and grouting method

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Experimental program
Comparison scheme
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Embodiment

[0026] Embodiment: The polymer loaded grouting method for road base reinforcement of the present invention, for the loose semi-rigid pavement and flexible base pavement, the loading device 1 applies additional load to the road surface to prevent the expansion force of the high polymer material after the reaction Jack up the road surface; inject high polymer material into the base layer, the volume of the material will expand rapidly after the reaction, and the loose base layer will be consolidated, so as to achieve the purpose of strengthening the base layer.

[0027] The specific implementation steps are:

[0028] (1) Use non-destructive testing techniques such as falling weight deflection meter (FWD) and ground penetrating radar (GPR) to test and evaluate the performance of the pavement; according to the test and evaluation results, analyze the condition of the pavement base layer, and determine the road sections that need to be reinforced;

[0029] (2) For the road section ...

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PUM

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Abstract

The invention discloses a road base reinforcing high-polymer loading and grouting method. Aiming at semi-rigid road surface with an incompact base, and flexible base road surface, additional load is applied to the road surface by a loading device, an expansive force of the reacted high-polymer material is prevented from supporting the road surface; and by injecting the high-polymer material into the base, the volume of the reacted material rapidly expands, and the incompact base is solidified so as to fulfill the aim of reinforcing the base. The method has the characteristics of good treatment effect, rapid construction, no curing need, high pertinence, high controllability, fund conservation and the like; and compared with the conventional maintenance method, the method is obviously innovative in technical principle, construction method and other aspects. The unique road base reinforcing method can save a lot of funds and construction period, avoids bad social impact due to long-term traffic closure, and contributes to protecting environment and saving resources.

Description

technical field [0001] The invention belongs to road maintenance and repair technology, in particular to high polymer grouting rapid repair technology for semi-rigid pavement with loose base and flexible base pavement. Background technique [0002] The base types of highways in my country mainly include semi-rigid base and flexible base, among which semi-rigid base asphalt pavement is the main pavement structure form of high-grade highways in my country. Due to a variety of reasons, many highways have many early damage phenomena shortly after they are built, and the amount of maintenance projects is increasing, and the requirements for maintenance technology are also getting higher and higher. Diseases of such pavements (such as cracks, subsidence, voids, looseness, potholes, etc.) are usually closely related to the quality of the base, and early pavement failures caused by insufficient base strength are common in engineering. At this time, if joint filling and asphalt laye...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01C23/10
Inventor 王复明郭大进钟燕辉张蓓王绪东赵线峰刘井林乔国斌
Owner 王复明
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