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Condition Assessment Essential for Effective Management of Buried Infrastructure
This article discusses the crucial step of condition assessment in the development of an asset management plan for pipeline infrastructure. Using this method, utilities can focus on identifying specific sections of a pipeline that require repairing rather than replacing the entire pipeline. An investment profile for pipelines can be determined in order to proactively schedule improvements in conjunction with budgets. An example of condition assessment is presented where Lubbock, Texas, followed a three‐phase approach for pipeline assessment that included a review of historical data, hydraulic considerations (including transient pressures), finite element analysis, and corrosion potential in the soil. Finite element analysis and a geographic information system were used to prioritize which sections of the pipeline warranted physical inspection. The second phase validated the condition of the pipe using remote field eddy current transformer‐coupling technology and/or acoustic‐sensor leak‐detection technology to determine the condition of the pipe. The third phase involved development of a detailed mitigation plan to prioritize the replacement or repair of the segments of the pipeline with the highest potential of failure based on the condition assessment and field testing. The plan allows the city to budget replacement of critical segments over 5‐ and 10‐year periods as part of the normal capital improvement process. Risk management of pipeline leaks is also discussed.
Condition Assessment Essential for Effective Management of Buried Infrastructure
This article discusses the crucial step of condition assessment in the development of an asset management plan for pipeline infrastructure. Using this method, utilities can focus on identifying specific sections of a pipeline that require repairing rather than replacing the entire pipeline. An investment profile for pipelines can be determined in order to proactively schedule improvements in conjunction with budgets. An example of condition assessment is presented where Lubbock, Texas, followed a three‐phase approach for pipeline assessment that included a review of historical data, hydraulic considerations (including transient pressures), finite element analysis, and corrosion potential in the soil. Finite element analysis and a geographic information system were used to prioritize which sections of the pipeline warranted physical inspection. The second phase validated the condition of the pipe using remote field eddy current transformer‐coupling technology and/or acoustic‐sensor leak‐detection technology to determine the condition of the pipe. The third phase involved development of a detailed mitigation plan to prioritize the replacement or repair of the segments of the pipeline with the highest potential of failure based on the condition assessment and field testing. The plan allows the city to budget replacement of critical segments over 5‐ and 10‐year periods as part of the normal capital improvement process. Risk management of pipeline leaks is also discussed.
Condition Assessment Essential for Effective Management of Buried Infrastructure
Livingston, Bryon L. (author) / Aillet, Joe R. (author) / Soon, Soo Koon (author)
Journal ‐ American Water Works Association ; 100 ; 22-24
2008-04-01
3 pages
Article (Journal)
Electronic Resource
English
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