Foold Utilization Mode And Its Risk Analysis

Based on the problem of water resources the paper develops the research of method of flood utilization and its risk analysis.The paper concludes the best flood utilization project of varied flood frequency and different period of time by deducing the volume, benefit and risk of flood utilization withthe method of theorizing flood control multi-objective dynamic programming model and groundwater balance model of downriver district and two dimension multi-objective risk analysis model which based on five factors-uncertain risk of upriver flood and reservoir controlling and calculative parameter of economic profit, probability risk of drainage beyond the safe mark of downriver and harmful to biology and environment. We can find several relations between any two factors such as the different flood limit lever of reservoir, the flood with different frequency, the biggest volume of store floodwate, the biggest rate of flow in the course of flood discharging. Appling to practice of Yanghe reservoir in Hebei province, the best project of limitative water line and the available volume, benefit and risk can be concluded. It is proved that the method the paper propositions is reasonable.