Research on hidden leakage detection in tunnels based on infrared thermal imaging technology
The installation of fireproof panels in tunnels often leads to hidden water leakage behind these panels,making it difficult to detect.Infrared thermography is a non-contact non-destructive testing technology,which is often used to measure the surface temperature field because it is sensitive to surface thermal radiation.Based on infrared thermography,this study investigates the feasibility of vehicle-mounted non-contact rapid detection of hidden leaks in tunnels.To achieve this goal,a Yangtze River tunnel was selected as the testing site.Infrared thermal imaging equipment was mounted on the roof of a vehicle to conduct mobile scanning and imaging of the tunnel surfaces,enabling the precise identification of exist-ing leakage points via infrared thermograms.To further validate the effectiveness of detection,artificial moisture was ap-plied to the surface of the fireproof panels to simulate leakage,successfully identifying the leakage process.The experi-mental findings presented in this paper demonstrate the feasibility of employing infrared thermography for non-contact rapid detection of hidden leakage in tunnel environments.
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维普
