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A platform for research: civil engineering, architecture and urbanism
Dam Failure Risk Assessment
Uncertainties prevail in the analysis of dam breaching consequences, particularly in the identification of failure modes, the estimation of dam material properties and breaching parameters, and the evaluation of flood routing and vulnerability. Hence, it is important to consider various sources of uncertainties in dam risk analysis. This chapter presents the concepts and procedure of dam breaching risk assessment. First, the concepts of risk, risk analysis, risk assessment, and risk management are described. Then, procedures of risk analysis and risk assessment are illustrated. The concept of as‐low‐as‐reasonably‐practicable (ALARP) is introduced in particular, which is very important for risk assessment. In ALARP requirements, a tradeoff has to be made between the sacrifice in implementing the risk reduction measures (money, time, trouble, and effort) and the gain from these risk reduction measures. Normally, disproportionality is used as a justification for reducing the risk below the tolerable risk limit.
Dam Failure Risk Assessment
Uncertainties prevail in the analysis of dam breaching consequences, particularly in the identification of failure modes, the estimation of dam material properties and breaching parameters, and the evaluation of flood routing and vulnerability. Hence, it is important to consider various sources of uncertainties in dam risk analysis. This chapter presents the concepts and procedure of dam breaching risk assessment. First, the concepts of risk, risk analysis, risk assessment, and risk management are described. Then, procedures of risk analysis and risk assessment are illustrated. The concept of as‐low‐as‐reasonably‐practicable (ALARP) is introduced in particular, which is very important for risk assessment. In ALARP requirements, a tradeoff has to be made between the sacrifice in implementing the risk reduction measures (money, time, trouble, and effort) and the gain from these risk reduction measures. Normally, disproportionality is used as a justification for reducing the risk below the tolerable risk limit.
Dam Failure Risk Assessment
Zhang, Limin (author) / Peng, Ming (author) / Chang, Dongsheng (author) / Xu, Yao (author)
2016-06-03
15 pages
Article/Chapter (Book)
Electronic Resource
English
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