基于水系联通的珠三角典型联围闸泵群调度方案研究

Study on the Scheduling Scheme of Sluice Pump Groups of Typical Embankment in Pearl River Delta Based on River and Lake System Interconnection

为实现三角洲河网闸泵群优化调度,保障河网区水系连通、改善河网水环境,以中顺大围为例,基于闸泵影响下的河网水系1D-3D水量-水质耦合模型,研究对比了水闸全开、独立引排水、单向流3种闸泵群调度模式。结果表明,单向流调度模式下水环境改善效果明显优于另外2种调度模式。在单向流调度模式的基础上,进行兼顾外江压咸与区域水环境改善的闸泵调度研究,得出在满足外江压咸期生态流量的条件下中顺大围的水环境改善调度方案。研究方法和成果用于制定闸泵群联合调度方案,并为区域水系规划和建设提供依据。

In order to optimize the scheduling of sluice pump groups in river network of delta, guarantee the river and lake system interconnection and improve the water environment of river network, based on the 1 D-3 D water quantity and quality coupling model of river network under the influence of sluice pump groups, this paper takes Zhongshun embankment as the research object and studies and compares three scheduling modes as follows: fully-open sluices, independent diversion and drainage and unidirectional flow scheduling. The results show that the water environment improvement effect of unidirectional flow scheduling mode is better than that of the other two scheduling modes. Based on the unidirectional flow scheduling mode, the research on sluice pump groups scheduling which takes saltwater resistance of rivers and improvement of regional water environment into account is carried out, and under the condition of satisfying the ecological flow during the period of saltwater resistance of rivers, the water environment improvement scheduling scheme of Zhongshun embankment is obtained. The research methods and results can be as a reference for formulating the joint scheduling scheme of sluice pump groups and planning & constructing the regional water system.