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Deterioration mapping in subway infrastructure using sensory data of GPR

Thikra Dawood,Zhenhua Zhu,Tarek Zayed

Tunnelling and Underground Space Technology（2020）

Cited 25|Views7
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Abstract
•A model to detect and map air/water voids in subway systems is developed.•The methodology is based on image analysis of GPR profiles.•A deterioration map that delineates air/water voids zones is generated automatically.•The proposed scheme is applied to a concrete tunnel in Montreal Metro.•Validation via digital images, coring, infrared thermography and laser techniques.
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Key words
Ground Penetrating Radar (GPR),Subway networks,Inspection,Concrete,Deterioration,Air/water voids
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