摘要
以三峡水库为例,针对汛期水库在单一汛限水位下运行导致洪水资源浪费问题,基于1882~2005年的汛期实测日流量资料,应用成因分析和统计分析法将汛期分为3期,分别推求分期的设计洪水,采用规范调洪演算方法和考虑年内洪水统计特性变化规律,确定了汛限水位动态控制变幅,提高了水库水资源的利用率。
Under the constraint of single flood control water level during flood seasons,reservoir operating results in waste of valuable flood resources.Taking the Three Gorges Reservoir for an example,the daily discharge data in flood seasons from 1882 to 2005 years is used for this research.Then cause analysis and statistic analysis method are applied to divide flood seasons into three stags and the segmented design floods are deduced.Finally,flood routing method is adopted to calculate variation range of dynamic flood control water level with considering annual flood statistical characteristics,which enhances the utilization ratio of water resources.
出处
《水电能源科学》
北大核心
2011年第2期38-40,143,共4页
Water Resources and Power
基金
国家自然科学基金资助项目(40701024)
三峡大学硕士学位论文培优基金资助项目(2010PY003)
关键词
三峡水库
汛限水位
动态控制
调洪演算
年内洪水统计规律
Three Gorges Reservoir
flood control water level
dynamic control
flood routing
annual flood statistical characteristics
