The forebay of hydropower station,a middle building connecting the channel and the pressure pipeline,has the function of regulating and stablizing the head of water.

• 水电站压力前池是连接渠道与压力引水管的中间建筑物,具有调节和平稳水头之功用,其容积大小、前池水面开阔程度对保证水电站的正常运行,改善水流流态至关重要。