Page 323 - Trenchless Technology Piping Installation and Inspection

condition is in an ideal time to renew the pipe. CIPP installation
condition is still in an ideal time to renew the existing pipeline,
Fractures typically will not reflect through the CIPP. This pipe
Cracks typically will not reflect through the CIPP. This pipe

will result in a well-shaped, round pipe within a pipe.

resulting in a well-shaped pipe within a pipe. The CIPP can be installed when the pipe is broken, but the displaced pipe sections will reflect in the final installed product. The CIPP can be installed with a hole in the pipe. The hole configuration will reflect in the final installed product much

Possible CIPP Impact

Structural Defects (see Fig. 7.1)

Defect Description A crack in the pipe is visible, but the pipe is still in place with no distortion. A crack that has become visibly open although the sections of pipeline pipe wall are still in place and not moved or displaced. Pipe where pieces are noticeably displaced and have moved from their original posi

Defect Type Cracks Fractured pipe Broken pipe Pipes with holes Deformed pipe Collapsed pipe Joint problems

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