Applicable to airport pavement joint structure stagger monitoring system and monitoring method

Abstract

The invention discloses a monitoring system and a monitoring method suitable for the dislocation of the joint structure of the airport pavement. The vertical deformation of the slab end at the position of the dowel bar where the FBG is arranged at the joint can reflect the size and form of the staggered deformation of the measured area of ​​the concrete slab; the monitoring system provided by this application is used for The staggered deformation monitoring of the airport runway can reflect the staggered form of the measured area of ​​the concrete slab through the vertical deformation of the slab end at the position of the FBG dowel bar arranged at the joint. This system is suitable for the staggered structure of the pavement joint Deformation monitoring.

Description

technical field [0001] The invention relates to the field of stand-staggered monitoring at joint structures of runway flight areas of civil aviation airports, in particular to a sensing technology applied to dowel bars arranged with FBGs at joint structures. Background technique [0002] When evaluating the performance of the flight area, the smoothness of the road surface is one of the most important indicators. The smoothness of the road surface directly affects the landing and taxiing safety of the aircraft, and has an important impact on the service life of the road surface. Settlement in the flight area, emptying and other conditions will cause the concrete pavement of the runway to subside, and the obvious temperature gradient inside the pavement will make the pavement warp at the corner or edge of the pavement, and then form a staggered platform at the joint, which will It directly affects the smoothness of the pavement, so it is necessary to monitor the staggered pla...

AI Technical Summary

Problems solved by technology

[0003] The application of optical fiber sensing technology to airport runways has been researched and applied in the past ten years, but the optical fiber is mainly embedded in the pavement structure layer (surface layers such as asphalt and concrete layers are mostly) to monitor the temperature change and temperature of the pavement. Under the dynamic response of the pavement under the load of the aircraft, there is little research on the use of optical fiber sensing technology to monitor the deformation and displacement of the airport runway, especially for the monitoring technology applicable to the dislocation of the seam is still in the research stage

Although the optical fiber monitoring technology has excellent "sensing" and "measuring" functions, it is a major technical obstacle in practical application due to its own survivability and the coordination with the deformation of surrounding structural materials.

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