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Remote Infrared Thermal Sensing of Sewer Voids

by Gary J. Weil, EnTech Engineering, Inc, United States,



Document Type: Proceeding Paper

Part of: Water Resources Infrastructure: Needs, Economics, and Financing

Abstract:

The question addressed by this paper is how to detect unseen problem areas in sewer systems before they give way. At present, progressive sewer administrations may use crawl crews or television systems to inspect sewers when problems are suspected. Infrared Thermography has been found by sewer districts and independent evaluation engineering firms to be an extremely accurate method of finding sewer voids, before they cause expensive and dangerous problems. This technique uses a non-contact, remote sensing method, with the potential for surveying large areas quickly and efficiently.

Subject Headings: Sewers | Voids | Thermal effects | Computer vision and image processing | Sensors and sensing | Thermal analysis | Maintenance and operation

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