东庄水库蓄清排浑运用对维持有效库容的作用

Role of the operation of storing clear water and discharging muddy flow in maintaining effective storage of the Dongzhuang Reservoir

在设计水沙系列及拟定的运用方式下,通过实体模型试验研究了水库蓄清排浑运用条件下的水沙运动规律、排沙特性及库区纵横剖面形态和库区淤积量的变化过程。试验结果表明,系列年运用试验结束后,库区总淤积量为5.21亿m3,770m高程以下有效库容为10.24亿m3,占总库容的81.27%,说明蓄清排浑是东庄水库维持有效库容的有效运用方式之一。

With the designed time series of incoming flow and sediment and the operation rules,a series physical model tests for the Dongzhuang Reservoir were conducted to study the sedimentation,sediment flushing,longitudinal and cross section profiles,storage loss and effective storage.The test results show that an effective storage 1.024 billion m 3 under water level 770m can be maintained with the operation of storing clear water and discharging muddy flow.The results show storing clear water and discharging muddy flow is the best way to maintain the effective storage for a heavy sediment-laden reservoir.