Abstract
The Threshold Break Rate is used with failure prediction models to draw future replacement time of a pipe. Exponential, Linear Break Rate Model and the Weibull form of ROCOF (Rate of Occurrence of Failure) function is applied to the equivalence relationship with the Threshold Break Rate developed in the Theory part of this paper. Examples are provided to illustrate the use of a ROCOF with break history of a pipe to obtain a future optimal replacement time. Break database of pipes in water distribution systems is rarely found in reality. Practical tables and figures to facilitate use of the Threshold Break Ræt are developed for practicing engineers in case break database is not available. The proposed methodologies are expected to provide a useful tool for improving pipe maintenance activities.
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The manuscript for this paper was submitted for review on June 27, 2002.
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Park, S.W., Loganathan, G.V. Methodology for economically optimal replacement of pipes in water distribution systems: 2. Applications. KSCE J Civ Eng 6, 545–550 (2002). https://doi.org/10.1007/BF02842008
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DOI: https://doi.org/10.1007/BF02842008