TAILIEUCHUNG - Risk based approach for safety standard of coastal flood defences in Vietnam

This paper focuses on risk analysis and safety aspects of coastal flood defences in Vietnam. The sea dike system has been actually designed by a 20 to 25 years return period. From the current situation it seems that the dike system is not sufficient to withstand the actual sea boundary condition. Risk based approach for safety standard of coastal flood defences in Vietnam | Risk based approach for safety standard of coastal flood defences in Vietnam Mai Van Cong1 Mai Cao Tri2 Nguyen Ba Quy3 . Vrijling4 Abstract This paper focuses on risk analysis and safety aspects of coastal flood defences in Vietnam. The sea dike system has been actually designed by a 20 to 25 years return period. From the current situation it seems that the dike system is not sufficient to withstand the actual sea boundary condition. As present situation the total annually economic damages of Vietnam due to floods and typhoons is about to of its GDP. Accurate safety assessment of the existing coastal defence system is therefore of large importance. It can quantify the possible consequences after failure of the defensive system the loss of life economic environmental cultural losses and further intangibles. To determine if safe is safe enough an investigation is carried out in this paper to determine other types of risks to which the local population is exposed apart from the flood risk. The issues addressed in this paper may support decision-maker to find the optimal protection levels of the coastal regions and for a long term planning of rehabilitation of the coastal flood defences in Vietnam. 1. Introduction Backgrounds A coastal flood defence system may comprise various elements sea dike sections estuarine dike sections dunes sea walls dike crossing structures and discharged structures. The system is designed to protect low-lying coastal zone from sea floods by a certain safety level which is written in the codes. Main interests are what is the actual safety of the protected areas and if safe is safe enough. The first question is answered by quantification of probability that the protected areas are inundated or in other word the probability that the system failure occurs. Answer for the later issue can be given by determination of acceptable risk level for the protected regions. The inundated failure probability can be quantified accurately .

• Môi trường
• Risk based approach
• Safety standard
• Coastal flood defences
• Motivation and study approach
• Study approach
• Risk measures
• High risk pregnancy
• Maternal nutrition
• Substance abuse
• Environmental agents
• Reproductive risk
• Genetic screening
• Congenital heart disease
• safety
• risk
• plans
• based
• approach
• oversight
• faa
• capabilities
• data
• improved
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• analysis
• program
• global
• Credit risk
• Firm conduct performance
• Bank lending
• Capped call
• Bank lending decisions
• Game theory
• Project network
• Risk response
• Nash equilibrium
• Genetic algorithm
• Public health
• Colorectal cancer
• Theory of planned behavior
• Health action process approach
• Average risk individuals
• Climate change
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• Saltwater intrusion
• River bank erosion
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• Non construction solutions play
• Public and Pediatrics
• Paediatrics
• People and Politicians
• Spain – History
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• notifications and data
• sources for analysis
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• tuberculosis cases
• mortality
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• material resources
• private sector
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• Insulin Like Growth
• Based Approach
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• Detection of Carcinogens
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• Carcinogenic Nucleic
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• Celiac Disease
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• certifications levels
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