摘要
为了研究台阶式溢流坝不设反弧连接时的消力池水力特性,通过模型试验,量测了消力池底板上的时均压强,分析了消力池形成水跃的特点。结果表明,在水流冲击消力池底板处时均压强出现最大值,其值随泄槽坡度增加、台阶高度减小而增大;在水流冲击点之后,时均压强出现最小值。
Experimental research was conducted on the stepped chute which connected with horizontal stilling basin directly. New date was presented on the pressure head alone the floor of the stilling basin and the characteristics of hydraulic jump. The experiment data indicated that the maximum pressure head was in the impact area of the stilling basin floor next to the chute. Smaller step size and steeper chute angle would cause bigger pressure head. The minimum value of the pressure head was found behind the impact area.
关键词
台阶式溢流坝
消力池
时均压强
水工模型试验
stepped spillways
stilling pool
hydraulic jump
mean pressure
model experiment
