羊曲水电站溢洪道掺气设施的试验研究

Test Research of Spillway Air Entraining Facilities of Yangqu Hydropower Station

针对羊曲水电站溢洪道掺气槽的位置、体型进行了十多个方案的试验研究和论证分析,提出的掺气坎后双圆弧底坡方案,解决了掺气坎后的回水问题及水翅问题。其具有流态好、空腔水舌稳定、掺气槽内无积水、掺气浓度较大等优点,解决了溢洪道的掺气问题,满足了设计要求,并被应用于工程设计中,可供其它工程参考。

In view of Yangqu projiect spillway aerator position,configuration,test and analysis on over ten alternatives.suggested aerator downstream double arc bottom slope scheme,solved aerator backwater and water wing problem.The recommended alternative is characterized by good flow pattern,stable nappe in air cavity,no water logging in aeration slot,greater aration intensity,which solves the issure of spillway aeration and satisfies the design requirepments.It has be apply to design,and can be referrible by other projiects.