本文利用相关分析方法,对某水闸原型资料进行分析,研究水闸部分孔开启时流量系数的影响因素,提出多孔闸孔口淹没出流时的综合流量系数Cs不仅与相对淹没度(下游堰上水深与闸门开度之比hs/e)有关,同时还与下游水流扩散情况有关,并得出了Cs与相对淹没度hs/e和闸后扩散比b/B(过闸净宽与下游河道宽度之比)的相关关系式Cs=f(hs/e,b/B)。 In this paper, the correlation analysis method is used to analyze the prototype data of a sluice. The influencing factors of the flow coefficient when a sluice is partially open are studied. The comprehensive flow coefficient Cs when submerged out of a sluice gate is not only related to the relative submergence And gate opening ratio hs / e), but also with the downstream flow of the proliferation of the situation, and come to Cs and relative submergence hs / e and gate diffusion ratio b / B (net gate width and the width of the downstream river The correlation of Cs = f (hs / e, b / B).