Infrared Thermal Sensing Of Sewer Voids

Gary J Weil

doi:10.1117/12.939150

27 March 1984 Infrared Thermal Sensing Of Sewer Voids

Gary J Weil

Proceedings Volume 0446, Thermosense VI: Thermal Infrared Sensing for Diagnostics and Control; (1984) https://doi.org/10.1117/12.939150
Event: Thermal Infrared Sensing for Diagnostics and Control: Thermosense VI, 1983, Oak Brook, United States

Abstract

The deterioration of sewer systems and their associated infrastructure is one of the most serious problems facing city, state, federal, and world authorities. As an example, three large sewer voids in the St. Louis Metropolitan area caused over $2,000,000 in repair costs in only one year. The detection of voids in and around underground sewer lines, as well as the detection of effluent leakages is necessary when determining the priority of structures for repair. At the present time sewer voids are sometimes detected by manual methods which are expensive, time consuming, and not extremely accurate. Most of the time, the void is not detected until the street caves in. Infrared thermography has been found to be capable of detecting voids around underground sewer systems because under certain conditions, temperature differentials exist between various types of materials, effluents, and cavities. This paper describes the problem of deteriorating sewer systems, the field tests used to detect sewer voids, the equipment used in the field tests, the theories used to design the tests, various complicating factors, and anticipated future refinements on the procedure.

Citation Download Citation

Gary J Weil "Infrared Thermal Sensing Of Sewer Voids", Proc. SPIE 0446, Thermosense VI: Thermal Infrared Sensing for Diagnostics and Control, (27 March 1984); https://doi.org/10.1117/12.939150

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available