平原区中小型水闸过闸流量推求方案分析

Analysis of Overflow Discharge Calculation Scheme of Middle and Small Gates in Plain Area

杭州市市域内平原分布广泛,涵盖了杭嘉湖平原、萧绍平原的相当部分,区内河网密布,中小型水闸数量相当可观。以水闸不同启闭情况下的实测过闸流量为依据,结合水闸自身特性与水力学相关理论,探求可操作性的过闸流量推求方案。结合实例介绍了推流方案的编制。基于推流方案,制作用于查阅过闸流量的工作表,绘制相应的工作曲线。

With a dense river network and a considerable quantity of middle and small gates within the area, local plains are distributed widely in urban area of Hangzhou City, covering certain parts of Hangjiahu Plain and Xiaoshao Plain. Based on the measured discharge over gate in different open or closure situation, in combination with theories relevant to self-characteristics and hydropewer, a scheme which can be fully implemented is sought to calculate the discharge over gate. How to carry out the discharge calculation scheme is introduced based on a real case in this study. According to the calculation scheme, work tables are made for looking into discharge over gate and corresponding work curves are drawn here.