Please use this identifier to cite or link to this item: http://repositorio.lnec.pt:8080/jspui/handle/123456789/17255
Title: Risk analysis of Odelouca cofferdam
Authors: Pimenta, L.
Caldeira, L.
Maranha das Neves, E.
Keywords: Zoned dam;Risk analysis;Safety of dams;Odelouca cofferdam
Issue Date: Jun-2009
Publisher: COMMISION INTERNATIONALE DES GRANDS BARRAGES
Citation: COMMISION INTERNATIONALE DES GRANDS BARRAGES
Abstract: In this paper we present the risk analysis of Odelouca Cofferdam, using an event tree analysis. The initializing events, failure modes and analysed limit states are discussed based on an influence diagram. The constructed event trees and their interpretation are presented. The obtained risk values are represented in an FN plot superimposed to the acceptability and tolerability risk limits proposed for Portuguese dams. Initially, particular emphasis is placed on the main characteristics of the cofferdam and deviation hydraulic structures, as well as on some important construction aspects conditioning the expected structural behaviour and the analysed limit states. Downstream valley characteristics and the results of dam break studies, which based the consequences identification and evaluation, are also present.
URI: http://repositorio.lnec.pt:8080/jspui/handle/123456789/17255
Appears in Collections:DG/Chefia - Comunicações a congressos e artigos de revista

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