常熟市海洋泾枢纽优化调度运行研究

Study on optimal operation of Haiyangjing hub in Changshu City

基于一维非恒定流水动力学Saint-Venant方程组,应用水利计算软件HEC-RAS,通过现场实测、数值验证,建立海洋泾枢纽引水数值计算模型。以河道单潮次入城水量为目标,以河道控制段安全水位为约束条件,计算分析枢纽节制闸启闭运行方式、闸门开度、河道沿线涵闸调度方式、城区水位等对工程运行的影响,计算模拟工程在4种常见潮型下的运行工况,比选确立较为合理的调度方式,为工程调度运行提供参考。

Based on the one-dimensional unsteady hydrodynamic Saint-Venant equations, a hydraulic calculation software HEC-RAS was used to establish the numerical calculation model for the water diversion of Haiyangjing hub through field measurement and numerical verification. Taking the water amount that enters the city in a single stream as an objective, and the safe water level in the river control section as a constraint, the influence of the opening and closing operation mode of the control gate, the opening degree of the gate, the sluice gate scheduling method along the river, and the water level of the city to the project operation were calculated and analyzed. The operating conditions of the simulated project under four common tidal patterns were calculated, and a more reasonable scheduling method was established by comparison, which could provide a reference for the project scheduling operation.