Le renouvellement des réseaux d'eau potable: une revue critique

Jihad Elnaboulsi and Olivier Alexandre
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Olivier Alexandre: UMR GSP - Gestion des services publics - ENGEES - École Nationale du Génie de l'Eau et de l'Environnement de Strasbourg - CEMAGREF - Centre national du machinisme agricole, du génie rural, des eaux et forêts

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Abstract: The reactive evaluation approach and the predictive approach for modeling and analyzing breaks in deteriorating water distribution systems have been tried. Descriptive statistical studies have been used to analyse pipe failure. Predictive models are classified into three basic categories: aggregate type models, regression type models, and probabilistic predictive models. The Proportional Hazards Model is a probabilistic predictive model, and is applied to predict failure probabilities in deteriorating water pipes. This methodology possesses high flexibility for adapting to particular system characteristics. Economic studies have been performed to determine an optimum replacement time for breaking mains. Once the total cost (direct and social) is known, the next questions to be answered are which pipes should be replaced and when they should be replaced.

Keywords: date optimale de renouvellement; approches de renouvellement; Réseaux d'eau; Modèles; défaillances des réseaux; date optimale de renouvellement. (search for similar items in EconPapers)
Date: 1996
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Published in Canadian Water Resources Journal, 1996, 21 (4), pp.341 - 354. ⟨10.4296/cwrj2104341⟩

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Persistent link: https://EconPapers.repec.org/RePEc:hal:journl:hal-00447929

DOI: 10.4296/cwrj2104341

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