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Assessment of underground infrastructure using non-destructive testing methodsPipe re-lining has become a cost-effective trenchless method for the rehabilitation of
deterioration under ground infrastructure such as water and sewer distribution systems.
The pulling of a video camera though ground infrastructure is the currently the most
common method for accessing the state of pipe deterioration. Often the quality of
the video data is poor and difficult to interpret due to formation of residues and
deposits on the inside to the pipe and the quality of video data. Video image data is
currently the main method used for the development of a long-term pipe maintenance and
repair programs. Research is underway at the University of Waterloo to investigate the
development of a non-destructive testing tool that will: 1) access the state of pipe
deterioration, 2) condition of soil surrounding the pipe, and 3) access the quality of
pipe rehabilitation. |