Chapter
Aug 10, 2023
A New Method of Inspecting PCCP for a Utility with 15 Years of PCCP Inspection Experience
Publication: Pipelines 2023
ABSTRACT
Omaha Metropolitan Utilities District (MUD) has used electromagnetic (EM) inspection technology for 15 years to inspect some of the more distressed prestressed concrete cylinder pipe (PCCP) in its system. Up until 2021, robotics was the exclusive delivery system for the EM inspection technology. In 2021, it was proposed that a free-swimming tool be used to inspect 6.6 mi of a critical 54-in. PCCP potable water main that had not yet been inspected. The advantage of using a free-swimming tool for this length of inspection run is the total inspection time which is one day (8−14 h) versus a week or more (six to eight days) for the robotics tool. The free-swimming tool also requires limited tapping on the main, one at the insertion location, and one tap at the extraction location.
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REFERENCES
AWWA (American Water Works Association). (AWWA C301-72) Prestressed Concrete Pressure Pipe, Steel Cylinder Type, For Water and Other Liquids. AWWA, Denver, CO.
AWWA (American Water Works Association). (AWWA C304-14) Prestressed Concrete Pressure Pipe, Steel Cylinder Type.
Information & Authors
Information
Published In
Pipelines 2023
Pages: 261 - 267
History
Published online: Aug 10, 2023
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ASCE Technical Topics:
- Automation and robotics
- Concrete cylinder pipes
- Concrete pipes
- Construction engineering
- Construction management
- Engineering fundamentals
- Geomechanics
- Geotechnical engineering
- Infrastructure
- Inspection
- Lifeline systems
- Materials engineering
- Materials processing
- Mud
- Pipeline systems
- Pipes
- Prestressing
- Soil mechanics
- Soils (by type)
- Systems engineering
- Urban and regional development
- Urban areas
- Utilities
Authors
Affiliations
P.E.
1Director, Infrastructure Integrity. Email: [email protected]
P.E.
2Senior Condition Assessment Engineer, Pure Technologies, a Xylem Brand. Email: [email protected]
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Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.