Alternative strategies for pipeline maintenance/renewal

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ConferenceAWWA 2004 Annual Conference: 13 June 2004, Orlando, Florida
Pages116; # of pages: 16
Subjectdistribution mains, transmission mains, rehabilitation, costs, hydraulic, water quality, water mains failure frequencies; Pipes and pipelines
AbstractThis paper addresses decision-making issues faced by most water utilities regarding their water mains. An overview is provided to explain the difference between failure management of small-diameter mains in distribution systems and failure prevention in large-diameter transmission pipelines. The paper further describes past and on-going research at the National Research Council of Canada (NRC) on these issues. A description is provided for the application of fuzzy logic to assess failure risk of large diametertransmission pipelines. Case studies are described to illustrate the application of a multivariatetime-exponential model to historical failure rates in small-diameter distribution mains. The impact of time-dependent factors on water main breaks is demonstrated, with special emphasis on the effect of various cathodic protection measures on the life-cycle costs of water mains.
Publication date
AffiliationNRC Institute for Research in Construction; National Research Council Canada
Peer reviewedNo
NRC number45353
NPARC number20377206
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Record identifier6b2c09de-5f5a-4fdb-962f-64f0d9e41079
Record created2012-07-24
Record modified2016-05-09
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