某水电站定期冲洗式沉沙池设计研究

Study on Periodically Flushed Sand Trap

依据某水电站的泥沙资料,提出本工程定期冲洗式沉沙池的设计过程,通过初拟沉沙池的主要控制尺寸,计算沉沙池的泥沙沉速,并逐时段分段的计算沉沙池的水力参数及泥沙沉降率、泥沙淤积及冲洗等一系列参数,为电站的定期冲洗式沉沙池设计提供有力依据。

In accordance with data on sediment of one hydropower project,the design process of the periodically flushed sand trap is presented. Through the proposed main control sizes of the sand trap,the settling velocity of the sand trap is calculated. Furthermore,the hydraulic parameters of the sand trap and a series of parameters such as settling rate,sediment siltation and flushing of the sand trap are calculated by section and by time period,providing the design of the periodically flushed sand trap with strong basis.