Rapid detection method and detection device for detecting diseases in tunnel

A detection method and tunnel technology, applied in the direction of measuring devices, instruments, etc., can solve the problems of lack of non-contact rapid detection methods and detection devices, inability to consider the impact of operational structural diseases, inability to analyze the occurrence state of groundwater, etc.
CN111457962AActive Publication Date: 2020-07-28TONGJI UNIV +1
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
TONGJI UNIV
Publication Date
2020-07-28

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Abstract

The invention relates to a rapid detection method and a detection device for detecting diseases in a tunnel. The detection method comprises the steps of: detecting the lining thickness and a back cavity through an acoustic emission and laser vibration measurement technology; detecting the lining strength and compactness through the laser ultrasonic technology; detecting underground water behind the lining by utilizing an infrared temperature detection technology; detecting the degradation degree of surrounding rock behind the lining by using a laser scanning and inversion technology; and determining the position of the disease by using inertial navigation and image registration technologies. The detection device for detecting diseases in the tunnel comprises an acoustic emission and laservibration measurement module, a laser ultrasonic module, an infrared temperature detection module, a surrounding rock parameter inversion module and the like. The device runs once in the tunnel to obtain the disease features such as lining thickness and the cavity at the back of the lining, the underwater, weakening degree, the concrete degree and the compactness of surrounding rock, and comparedwith the existing inspection technology, the rapid detection method and a detection device have the advantages that the detection efficiency and the identification precision are greatly improved, thedisease positioning is more accurate, and the influence on the normal traffic driving is obviously reduced.
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Description

technical field

[0001] The invention relates to a detection method for internal diseases of operating tunnels, in particular to a rapid detection method and detection device for detecting internal diseases such as tunnel lining thickness, voids behind the lining, groundwater, concrete strength and compactness. Background technique

[0002] The internal diseases of the tunnel mainly include: insufficient thickness of the lining, voids behind the lining, rich groundwater behind the lining or weakening of the surrounding rock, insufficient concrete strength, and lack of compactness. Diseases, and even cause disasters such as collapses and water gushes, seriously endangering structural and traffic safety. Therefore, it is very important to carry out the detection of internal defects in the tunnel to grasp the technical status of the structure and ensure the safety of operation.

[0003] Among the traditional tunnel disease detection methods, the core drilling method can detect ...

Claims

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