Study on Flood-Water Resources Utilization by Raising up the Flood Control Level

With an example of flood control level analysis of Yanghe Reservoir of Hebei Province, the authors simulate the relationship between reservoir water storing and releasing according to different flood control levels of inflow flood at different frequencies using reservoir regulation multi-objective dynamic programming model. On this basis, the risk analysis model of raising up flood control level and the multi-objective risk decision model are established by integrating the uncertain factors such as inflow flood, reservoir safe operation, the effects of flood release decrease on downstream flood control standard and ecological environment water use. Through calculation of flood-water resources utilization benefits under different flood control levels, the optimal reservoir flood control levels at different stages with different frequencies of inflow flood are sought.