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Semi-rigid base layer disease detection and high polymer grouting rapid servicing technology

A semi-rigid base and detection technology, applied in the field of roadbed and pavement inspection, maintenance and repair, can solve the problem that the effect of grouting repair cannot be guaranteed, and achieve the effects of avoiding adverse social impact, good durability and rapid detection.

Active Publication Date: 2008-09-10
SAFEKEY ENG TECHZHENGZHOU
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  • Summary
  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, although the durability of polymer materials can reach more than 10 years, the effect of grouting maintenance cannot be guaranteed.

Method used

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Experimental program
Comparison scheme
Effect test

Embodiment

[0037] Embodiment: The present invention's semi-rigid base road surface disease detection and high polymer grouting rapid maintenance technology includes the following contents:

[0038] 1. A semi-rigid base pavement disease detection technology

[0039] (1) Semi-rigid base pavement defect detection technology based on falling weight deflectometer (FWD):

[0040] 1) Use FWD to conduct deflection test on the selected road section;

[0041] c. Load setting: generally set to 10 tons;

[0042]d. Measuring point position: Generally, it is selected at the wheel track, and the distance between the measuring points is 6m; if there is a crack, arrange points on both sides of the crack, and the distance between the measuring point and the crack is 30cm.

[0043] 2) Based on the FWD deflection test data, the structural layer modulus is back calculated by using the mechanical property back calculation software SIDMOD;

[0044] 3) Judging the disease condition according to the modulus i...

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Abstract

The invention discloses a semi-rigid base pavement damage detection and polymer grouting fast maintenance technology, which utilizes a falling weight deflectometer (FWD) and a ground penetrating radar (GPR) to detect and evaluate the performance of the pavement, identify the pavement damage and realize the lossless and fast detection of the semi-rigid base pavement damage. A grouting hole is perforated on the section that needs damage treatment and polymeric materials are injected into the hole to repair the pavement. The maintenance technology has the advantages of speedy construction, good durability, strong pertinence and excellent waterproof performance of the injected polymeric materials, which not only saves a large amount of funds and construction periods and avoids the adverse social effects caused by long affected traffic, but also is beneficial to environmental protection and resources-saving . The semi-rigid base pavement damage detection and polymer grouting fast maintenance technology of the invention integrates damage lossless detection technology such as the FWD and the GPR, etc. with the polymer grouting fast maintenance technology, thus providing a whole set of advanced, efficient, economical and practical technology for detecting and maintaining the semi-rigid base pavement damage.

Description

technical field [0001] The invention belongs to roadbed pavement detection and maintenance technology, in particular to semi-rigid base road surface disease detection and high polymer grouting rapid maintenance technology. Background technique [0002] At present, my country's high-grade highway construction is in a stage of rapid development. As one of the main pavement types of high-grade highways, semi-rigid base asphalt pavement is the most widely used in my country's high-grade highways, accounting for more than 75%. However, due to various reasons, many road surfaces cannot meet the needs of vehicle traffic soon after they are built, and various early damage phenomena have occurred. It can be predicted that in the near future, the focus of my country's highway construction will shift from construction-based to construction and maintenance simultaneously, and will develop in the direction of maintenance-based. Therefore, the specific development environment and object...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N33/42G01N3/00G01N23/18E01C23/10
Inventor 王复明钟燕辉张蓓蔡迎春石明生李强
Owner SAFEKEY ENG TECHZHENGZHOU
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