Chapter
Aug 30, 2024
Investigate–Design–Build Solves Suspected Leak in a 72-in. PCCP Transmission Main under the Trinity River in Dallas, TX
Authors: Richard Bailey [email protected], Luis Bodington, P.E. [email protected], Erick Steitle [email protected], Mike Larsen [email protected], and Murat Engindeniz, Ph.D., P.E. [email protected]Author Affiliations
Publication: Pipelines 2024
ABSTRACT
The City of Dallas, Dallas Water Utilities (DWU) continued its comprehensive condition assessment program in 2022 by performing electromagnetic and leak detection inspection of one of its critical transmission mains, the Cedar Crest Water Transmission Main, which detected a large leak in the vicinity of one of the bends within the encased portion of the pipeline that crosses under the Trinity River. DWU retained the design–build team of Structural Technologies (Structural) and their subconsultant, Simpson Gumpertz & Heger Inc. (SGH) to investigate and repair the subject portion of the pipeline under the river using Carbon Fiber Reinforced Polymer (CFRP) lining. This paper discusses the criticality of the pipeline, investigation, repair approach, and challenges encountered during CFRP repair construction, such as a major flood event.
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REFERENCES
ASTM. ASTM D3039, Standard Test Method for Tensile Properties of Polymer Matrix Composite Materials.
ASTM. ASTM D4541, Standard Test Method for Pull-off Strength of Coating Using Portable Adhesive-Testers.
ASTM. ASTM D7522, Standard Test Method for Pull-off Strength for FRP Bonded to Concrete Substrate.
ASTM. ASTM E2160, Standard Test Method for Heat of Reaction of Thermally Reactive Materials by Differential Scanning Calorimetry.
AWWA C305, CFRP Renewal and Strengthening of PCCP, 2018.
AWWA Manual M9 – Concrete Pressure Pipe, Third Edition.
Information & Authors
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Pipelines 2024
Pages: 194 - 203
History
Published online: Aug 30, 2024
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ASCE Technical Topics:
- Carbon fibers
- Composite materials
- Construction engineering
- Construction methods
- Electric power
- Energy engineering
- Engineering materials (by type)
- Fiber reinforced composites
- Fiber reinforced polymer
- Fibers
- Infrastructure
- Linings
- Materials engineering
- Pipe leakage
- Pipeline management
- Pipeline systems
- Polymer
- Power transmission
- Rehabilitation
- Synthetic materials
- Water and water resources
- Water leakage and water loss
- Water management
Authors
Affiliations
1Dallas Water Utilities, City of Dallas. Email: [email protected]
2Dallas Water Utilities, City of Dallas. Email: [email protected]
3Dallas Water Utilities, City of Dallas. Email: [email protected]
4Municipal & Energy Infrastructure Pipeline Solutions, Structural Technologies. Email: [email protected]
5Simpson Gumpertz & Heger, Inc. Email: [email protected]
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