隔河岩水利枢纽水力学原型观测

Hydraulic Prototype Observation of the Geheyan Hydropower Project

１９９２～１９９３年对隔河岩工程的原型观测部位包括一、二级消力池、表孔、深孔以及电站引水隧洞和厂房。观测内容有脉动特性、流态、雾化程度和范围、掺气以及空化情况等。观测结果表明，一级消力池是安全的，二级消力池起到了消能作用；４号深孔洞身时均压力分布均匀，无负压，设计侧墙高度满足运行要求；电站１～４号机进口快速闸门漏水量达到或超过设计允许值，１号机导叶漏水量满足设计值。

From 1992 to 1993 the hydraulic prototype observation was conducted at the Geheyan hydropower station. Observed parts included the lst and the 2nd stage stilling basins, high and low level outlets, water tunnel and power house. Observation contents included pulsating Characteristics, flow regime, atomization,aeration, and cavitation, etc. The observed results show that the lst stage stilling basin is safe,the 2nd stage stilling basin is in good operation. the No. 4 deep outlet is under uniform pressure and in it no negative pressure occurs. The height of the guide wall meets the requirement, and the leakage through the stop gate is increasing with the rise of the reservoit surface and exceeds the allowable value, but the leakage through the No. 1 turbine guide vane meets the design requirement.