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本文主要研究三峡工程与上游有防洪作用的一些水库、中游的堤防、分蓄洪区、支流水库共同组成的复杂防洪系统的优化调度．针对复杂庞大的长江防洪系统用网络模型进行求解，主要成果是建立了长江防洪系统的时空网络模型，及提出了将宜昌至汉口洪水演算模型与网络模型柔合在一起的求解方法，该法扩展了网络模型的应用领域．
This paper mainly studies the optimal operation of complex flood control system composed of some reservoirs with flood control function in the upper reaches of the Three Gorges Project, embankments in the middle reaches, flood diversion areas and tributaries reservoirs. The main result of this paper is to solve the complex Yangtze River flood control system by using the network model. The main achievement is to establish the spatio-temporal network model of the Yangtze River flood control system and to put forward a solution to the problem of integrating the Yichang-Hankou flood routing model with the network model. The application of network model.