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Risk Analysis for Engineering 9

Tham khảo tài liệu 'risk analysis for engineering 9', kỹ thuật - công nghệ, cơ khí - chế tạo máy phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | CHAPTER Risk Analysis in Engineering and Economics FAILURE CONSEQUENCES AND SEVERITY A. J. Clark School of Engineering Department of Civil and Environmental Engineering 5b Risk Analysis for Engineering Department of Civil and Environmental Engineering University of Maryland College Park chapman hAll CrC CHAPTER 5b. FAILURE CONSEQUENCES AND SEVERITY Slide No. Loss of Human Life Human Life Loss Due to Floods Resulting from Dam Failure - Introduction Dam failure can have various consequences some of which can be significant including loss of life. Each system failure that can arise has consequences. Flood plains population at risk dam breach inundation and fatality rates are discussed herein. J CHAPTER 5b. FAILURE CONSEQUENCES AND SEVERITY Slide No. Loss of Human Life Human Life Loss Due to Floods Resulting from Dam Failure cont d - Flood Plains A floodplain is defined by the American Geological Institute as the portion of a river valley adjacent to the river channel which is built of sediments during the present regimen of the stream and which is covered with water when the river overflows its banks at flood stages. The floodplain is a level area near the river channel. 41 CHAPTER 5b. FAILURE CONSEQUENCES AND SEVERITY Slide No. Loss of Human Life Human Life Loss Due to Floods Resulting from Dam Failure cont d - Flood Plains cont d The floodplain is an integral and necessary component of the river system. If a climate change or land use change occurs then the existing floodplain may be abandoned and new floodplain construction begins. Sediment is deposited when the stream flow overtops the banks this occurs approximately every 1.5 to 2 years in stable streams. 41 CHAPTER 5b. FAILURE CONSEQUENCES AND SEVERITY Slide No. Loss of Human Life Human Life Loss Due to Floods Resulting from Dam Failure cont d - Flood Plains cont d The floodplain extends to the valley walls. In engineering floodplains are often defined by the water surface elevation for a design flood such as .