Based on the data of the spillway depression model and the prototype for Daochaoshan Hydroelectric Station, this paper analyses the problem of flow aeration to prevent cavitation on stepped spill-way.

• 摘要根据大朝山水电站表孔减压模型试验资料，结合原型观测有关资料，对台阶溢流坝掺气减蚀的有关问题进行了分析研究。