关键词: 溢洪道, 水工模型试验, 泄流能力, 空蚀, 闸门调度

Abstract: Preliminary design of Zhongzuipo hydroelectric power projects has been finished. The hydraulic physical model is established, in order to investigate whether reservoir discharge could meet the needs in the flood and whether there is cavitation phenomenon in lower chute section. Meanwhile, the model aims to resolve the problems, such as the safety of failure buildings and the scheduling program of gate ope ration. Discharge capacity of spillway and negative pressure situation of lower chute section are calculated and verified through tests. To ensure normal operation of hydropower station in the dry season when the water amount from upstream is smaller, optional scheduling program of gate operation is developed.

Key words: spillway, hydraulic model test, discharge capacity, cavitation, gate operation scheduling