摘要
通过自行设计的拉西瓦水电站反拱型水垫塘模型,并通过在模型底板上铺设脉动压力传感器和流速传感器的方法,研究了在不同的上下游水位时反拱形水垫塘的动水荷载特性。研究表明:脉动压强的概率密度曲线与正态分布曲线具有相似的变化规律,最大流速发生在水舌冲击点下游的壁射流区,其结果可为反拱形水垫塘的设计与施工提供参考。
Through the Laxiwa Hydropower Station＇s arch-typed water cushion pond model which is self-designed, and by laying the pulse pressure sensor and velocity sensor on the model＇ s base, the water cushion pond＇ s hydrodynamic load characteristics are researched under different downstream water level. The research shows that the pulsation pressure＇s probability density curve and normal distribution curve would have the similar change rule, and the maximum velocity would happen in the wall jet area in the downstream reach of water-tongue impact point. The research result could provide references for the design and construction of the arch-typed water cushion pond.
出处
《水利与建筑工程学报》
2013年第2期196-199,共4页
Journal of Water Resources and Architectural Engineering
关键词
水垫塘
反拱形
拉西瓦
传感器
water cushion pond
reverse arch
Laxiwa
sensor
