水闸发生淹没孔流时,影响过闸流量的因素比较多,主要有上游水位、下游水位和闸门开度,因此难以在同一张图表中直接绘制水闸水位—流量关系曲线。以水闸过闸流态稳定时(恒定流)作为研究对象,根据水闸多年运行资料,得出过闸流量—下游水位关系的回归方程,然后结合经率定后的淹没孔流流量公式,较好地解决了水闸淹没孔流时水位—流量关系曲线的绘制问题,对做好水闸调度工作,掌握水闸运行状况具有重要意义。 Sluice flooding hole flow, the impact of over-flow of more factors, mainly upstream, downstream water level and gate opening, it is difficult in the same chart directly draw the sluice water level - flow curve. Taking the steady state of gate lock as a research object, the regression equation of the gate lock flow and the downstream water level is obtained according to the data of sluice gate operation over many years. Then, Solve the drawing of the water level-discharge curve when the sluice flooded the sluice, which is of great significance for the sluice scheduling and grasping the sluice operation status.