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Articles

Design Storm Pathology

Pages 49-55 | Published online: 23 Jan 2013
 

Abstract

The concept of a design storm is widely used as the basis for drainage system design and for the assessment of hydrologic impacts of land development. However, the design storm concept is frought with conceptual error when used to simplify engineering analysis by unrealistic assumptions. The potential for error in using this concept is so large that design storm practices should be either curtailed or applied only in the strictest of circumstances.

Le concept d’averse nominale est largement utilisé comme la base de la conception des systèmes de drainage et aussi pour l’évaluation des effets hydrologiques de l’aménagement des terres.Cependant, cette notion peut donner lieu à des erreurs conceptuelles lorsqu’elle est utilisée pour simplifier l’analyse technique par des hypothèses peu réalistes. La possibilité d’erreur est si grande avec ce concept qu’il devrait etre utilisé moins souvent ou seulement dans les conditions les plus strictes.

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