Design Floods and Control Water Levels of Jialing River Cascade Reservoirs in Operation Period
嘉陵江梯级水库运行期设计洪水及汛控水位
作者: 熊丰郭生练王俊田晶张剑亭钟逸轩吴旭树
作者单位: 1武汉大学水资源与水电工程科学国家重点实验室,湖北 武汉
刊名: Journal of Water Resources Research, 2019, Vol.08 (03), pp.209-216
中文刊名: 水资源研究, 2019, Vol.08 (03), pp.209-216
来源数据库: Hans Pubs Journal
DOI: 10.12677/JWRR.2019.83025
英文摘要: The differences between reservoir construction and operation periods, flood limited water level and flood control water level, were discussed. The most likely regional flood composition method was applied to derive and analyze design floods as well as the flood control water levels of Jialing River cascade reservoirs in operation period. Results reveal that: 1) the design floods of downstream reservoirs are moderately influenced by the operation of upstream reservoirs. The 1000-year design flood peak, 3 d, and 7 d flood volumes of Caojie Reservoir decrease by 11,456 m3/s (18%), 1.35 (12%) and 1.11 billion m3 (5%), respectively; 2) the flood control water levels of downstream reservoirs are slightly higher than flood limited water level with the same flood prevention standards. The flood...
中文摘要: 论述水库建设期和运行期设计洪水、汛限水位和汛控水位的差异。采用最可能地区洪水组成法,分析计算了嘉陵江梯级水库运行期设计洪水及汛控水位。结果表明:1) 梯级水库联合调度对下游水库洪水具有一定的削减作用,草街水库运行期千年一遇的设计洪峰、3 d和7 d洪量的削减量(削减率)分别为11,457 m3/s (18%)、13.5亿m3 (12%)和11.1亿m3 (5%);2) 在保证防洪标准不变的前提下,亭子口与草街梯级水库运行期汛控水位相比汛限水位可适当抬高,分别为447 m (447.4 m)和200 m (202.3 m),汛期年均发电量分别增加了1.1%和4.8%,共增发电量1.1亿kW∙h/年。
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