Home » Shop » 2014 – Risks Event Trees in the Assessment of Dam Safety
Przemyslaw A. Zielinski
Three aspects of the current engineering practice in using event trees in dam safety risk analyses are discussed in the paper. These aspects include assignment of probabilities for initiating events, treat-ment of dependencies in the event tree, and dynamic aspects of dam system behaviour and accounting for time. The paper discusses limitations of the methodology and common mistakes in engineering applications of event tree methods when assessing dam safety risks and making safety decisions for specific dams. Of particular importance is the discussion of incorrect interpretation of dependency structure when addressing common cause failure modes.
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ANCOLD is an incorporated voluntary association of organisations and individual professionals with an interest in dams in Australia.