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Device and method for non-destructive testing of concrete pavement slab based on fbg technology

A non-destructive testing, concrete technology, applied in the field of civil aviation, can solve the lack of non-destructive testing methods for concrete pavement and other problems, achieve high accuracy and reliability, and simple installation process

Inactive Publication Date: 2021-03-02
CIVIL AVIATION UNIV OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is still a lack of non-destructive testing methods for concrete pavement slabs based on FBG technology.

Method used

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  • Device and method for non-destructive testing of concrete pavement slab based on fbg technology
  • Device and method for non-destructive testing of concrete pavement slab based on fbg technology
  • Device and method for non-destructive testing of concrete pavement slab based on fbg technology

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Embodiment Construction

[0027] The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.

[0028] Such as figure 1 — image 3 As shown, the non-destructive testing device for concrete pavement panels based on FBG technology provided by the present invention includes a mobile carrier 7 and a plurality of acceleration sensors 1 installed on the mobile carrier 7, a fiber grating demodulator 2, a main control terminal 3, a The load 4, the telescopic support frame 5 and the road surface disease collector 6; wherein, one end of the telescopic support frame 5 is fixed in the mobile carrier 7, and the other end can be placed on the road panel; the acceleration sensor 1 and the load-bearing object 4 are all installed on the telescopic support frame 5, and the acceleration sensor 1 is connected with the fiber Bragg grating demodulator 2 through wires; a plurality of road surface disease collectors 6 are respectively installed at the front and rear e...

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Abstract

A non-destructive testing device and method for concrete pavement slabs based on FBG technology. The device includes a mobile vehicle and multiple acceleration sensors installed on the mobile vehicle, a fiber grating demodulator, a main control terminal, a load-bearing object, a retractable support frame and a road surface defect acquisition instrument; among them, the retractable support frame One end is fixed in the mobile carrier, and the other end can be placed on the road panel; the acceleration sensor and the load are installed on the retractable support frame, and the acceleration sensor is connected to the fiber grating demodulator through wires; multiple road surfaces The disease collectors are respectively installed at the front and rear ends of the mobile vehicle; the fiber grating demodulator and road surface disease collectors are connected to the main control terminal through wires. The invention has the advantages of simple installation process, no pre-embedded construction, high accuracy and reliability, and practical significance for large-scale real-time evaluation of airport concrete pavement.

Description

technical field [0001] The invention belongs to the technical field of civil aviation, and in particular relates to a nondestructive detection device and method for concrete pavement slabs based on FBG technology. Background technique [0002] The airport runway is one of the most important parts of the airport infrastructure, undertaking the task of taking off and landing the aircraft. If there is damage to the pavement, it will inevitably affect the take-off and landing safety of the aircraft, and even major accidents will occur. In order to avoid accidents, it is necessary to test various performances of pavement slabs, and provide corresponding technical basis for pavement management and daily maintenance based on various parameters obtained through detection. At present, the mainstream pavement testing technology in the world is non-destructive testing technology, and non-destructive testing can be roughly divided into deflection testing and non-deflection testing. Ho...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N21/27
CPCG01N21/27
Inventor 蔡靖李少杰许诤
Owner CIVIL AVIATION UNIV OF CHINA