盘石头水库输水洞工作闸门过流规律特性分析  

Characteristics Analysis of the Law of Runoff Flowing through the Convey Tunnel Gate in the Panshitou Reservoir

作　　者：杨玲霞[1] 吴建平[1] 高双聚[1] 李占松 

机构地区：[1]郑州工业大学

出　　处：《人民黄河》1999年第7期38-39,共2页Yellow River

摘　　要：介绍了盘石头水库输水洞工作闸门过流规律的试验结果，并将其与水力计算结果进行比较，分析了影响试验与计算结果偏差的因素。指出像盘石头水库输水洞工作闸门这样通常在高水头、小开度工况下运行的情况，其闸孔垂直收缩系数ε不仅与闸前、闸孔的几何条件有关，还与闸前压力有关。Achievements from the experiment of the law of runoff flowing through convey tunnel gates in the Panshitou reservoir are introduced in the paper. Elements impacting the experiment and causing calculation errors have been analyzed through comparing the results with hydraulic calculation. It is pointed out that the gate hole vertical contraction coefficient, for the convey tunnel gates normally operated under high lift and small open degree like Panshitou reservoir is not only related to gate geometric conditions, but also to the pressure in front of the gate. Correctness or not of the coefficient is the main reason causing the errors in calculation and experiment.

关 键 词：闸孔出流 弧形闸门 过流规律 水库 输水洞 

分 类 号：TV663.2[水利工程—水利水电工程] TV698.12