沂沭泗水系防洪工程联合调度系统构建及验证

Construction and validation of joint dispatching system for flood control project in Yishusi River

流域防洪工程系统实时联合调度,是行之有效的非工程防洪措施之一。基于沂沭泗水系防洪"河道泄洪—涵闸分流—湖泊蓄洪—滞洪区滞洪"的复杂大系统,采用大系统分解协调原理、马斯京根演算、水量平衡、二维水动力模型等方法,提出沂沭泗水系防洪工程联合调度系统的构建思路。基于所建模型,在现状工况条件下,对1974年暴雨洪水进行防洪工程联合模拟调度。经调度后,与1974年实测值比较,南四湖下级湖最高水位降幅为0.68 m;骆马湖最高水位降幅为0.37 m;中运河运河站洪峰流量削减90 m^3/s,削减率为2.4%。调度模型及演算结果基本合理,调度模型及采用的演算参数可以作为下一步优化调度的基础。

The real-time joint dispatch of basin flood control system is one of the effective non-engineering flood control measures. Based on the complex large-scale system of the Yishusi flood control system, “river flood discharge - culvert sluice shunting - lake flood storage - flood detention in flood detention area”, this paper puts forward the idea of constructing the joint dispatching system of the Yishusi flood control project by adopting large system decomposition and coordination principle, Muskingen calculus method, water balance, two-dimensional hydrodynamic model, etc. Based on the established model, the rainstorm flood in 1974 is carried out simulating in the flood control project under the current working conditions. Compared with the measured value in 1974, the maximum water level of the lower lake of the Nansi Lake decreases by 0.68m; the Luoma Lake decreases by 0.37 m; and the peak discharge of the Zhong Canal station reduces by 90 m3/s, and the reduction rate is 2.4%. The dispatch model and the simulating results are basically reasonable. The dispatch model and the calculating parameters can be used as the basis for the future optimal dispatching, which lays the foundation for the visualization, standardization, componentization and platform construction of the Yishusi River flood control decision support system.