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根据长江中游防洪系统的特点，从流域实测和历史洪水中选取有一定代表性的洪水作为典型，在遵循三峡防洪库容分配方案的前提下，建立典型洪水优化调度数学模型，并用模拟算法求解，以确定清江水布垭枢纽预留防洪库容对长江中游地区的防洪作用。结果表明：清江水布垭枢纽预留５ 亿ｍ３ 的防洪库容对城陵矶地区的防洪作用比较适宜。
According to the characteristics of the flood control system in the middle reach of the Yangtze River, a representative flood is selected from the measured and historical flood waters in the basin as a typical example. Under the premise of compliance with the Three Gorges flood distribution capacity allocation plan, a mathematical model of typical flood optimal operation is established, To Determine Flood Control Effect of Reserve Preventive Flood Control Capacity of Qingjiang Shuibuya Project on Flood Control in the Middle Reaches of the Yangtze River. The results show that flood control reservoir of Qingjiang Shuibuya Project reserving 500 million m3 flood control is suitable for the flood control in Chenglingji area.