滨海平原河网洪水资源利用研究

Research on Flood Water Resources Utilization in Littoral Plain River Networks

南方滨海河网地区多为经济发达地区,缺水形势严峻,开展该类地区的洪水资源利用研究十分必要和迫切。本文主要从河网目标控制水位动态优化控制角度出发,提出了河网目标控制水位优化计算模型,以实现洪水资源的高效利用。该模型针对现状工况条件,依据对后续控制时段内洪涝灾害风险频率、水资源需求及历史灾情的计算分析,建立河网目标控制水位与潜在损失的风险函数优化模型,寻求洪水风险损失和水资源利用这对矛盾体之间的平衡点,该平衡点即为目标控制水位的优化值。2005年台州市温黄平原河网调度的实践表明,该方法对河网优化调度和洪水资源利用具有很好的辅助决策作用。

This paper discusses the problem of flood water resources utilization in river networks from the point of optimal control of target control level.The proposed target control level is the expected level of flood dispatch s terminal,and it lies on rainfall probability and water demand in following control periods.In this paper,the model between target control level and potential losses is set up in accordance with computation for flood risk frequency,water demand in following control periods.By solving the op...