新沂河海口枢纽中深泓闸模拟泄流曲线初探

The Preliminary Study on Simulated Discharge Curve of the Center Thalweg Gate of Seaport Hub of Xinyi River

新沂河海口枢纽是淮河流域沂沭泗水系沿线的重要水利工程之一。中深泓闸的投入运行将为完善沂沭泗水系水文预报方案提供可靠的基础水文资料。根据新沂河海口枢纽扩建模型补充试验研究的成果,结合曲线型实用堰闸孔出流的特点,计算出不同闸门开启高度下的过闸单宽流量,并绘制闸上各不同水位级下的模拟泄流曲线。通过对泄流曲线的分析,掌握了中深泓闸闸上不同水位级时,其过闸单宽流量随闸门开启高度改变时的变化规律,为进一步印证中深泓闸实际泄流状况作资料准备。

The seaport hub of Xinyi River is one the important water conservancy projects along Yishu Surabaya lines of Huai River basin. The operation of center thalweg gate will provide reliable hydrologic data for improve the Yishu Surabaya hydrology forecasting scheme. Based on the complementary test research of seaport hub ex- panding model, combined with the characteristics of practical curved weir sluice gate outflow, the lockage unit discharge under the different gate opening height is calculated and the simulated discharge curve at the different water level on the floodgate is drawn. Through the analysis of the discharge curve drawing, the thalweg sluice at the different water level and the change regularity of the lockage unit discharge varying with the lock gate opening height are obtained which provides valuable data for further confirming the actual discharge of the center thalweg gate..