Title :
Risk Analysis and Quantitative Evaluation of Large and Middle-Scaled Reservoir Flood
Author :
Xu Xiangyang ; Xu Tianyi ; Shen Changjian
Author_Institution :
State Key Lab. of Hydrol.-Water, Hohai Univ. Nanjing, Nanjing
Abstract :
According to the current status of large and middle-scaled reservoirs in China, the analysis methods of reservoirs downstream flood risk in the event of dam-break and in check flood conditions are established. In the calculation of flooding status caused by reservoir check flood, based on the different characteristics of downstream rivers, water surface profile method, backwater profile method, storage routing method and unsteady open channel flows method are applied respectively. In the calculation of flooding status caused by reservoir dam-break flood, the formula of maximum dam-break discharge method and dam-break flow hydrograph method are presented. On the basis of these, a more suitable way of rendering flood risk maps for large and middle-scaled reservoirs in China is advanced, which is of great significance for the reservoir flood control operation and regional flood prevention decision-making.
Keywords :
dams; floods; reservoirs; risk analysis; China; backwater profile method; dam-break flow hydrograph method; large-scaled reservoir flood; maximum dam-break discharge method; middle-scaled reservoir flood; quantitative evaluation; reservoirs downstream flood risk; risk analysis; storage routing method; unsteady open channel flows method; water surface profile method; Educational institutions; Floods; Laboratories; Reservoirs; Risk analysis; Rivers; Surface discharges; Surface topography; Water resources; Water storage; Check flood; Dam-break flood; flooding; large and middle-scaled reservoir; risk analysis;
Conference_Titel :
Computer Engineering and Technology, 2009. ICCET '09. International Conference on
Conference_Location :
Singapore
Print_ISBN :
978-1-4244-3334-6
DOI :
10.1109/ICCET.2009.19