摘要
为减少泥沙淤积对库容的影响,古城水电站采用了"正向泄洪冲淤,侧向取水"的布置型式。在首部枢纽闸坝设置了2孔泄洪拉沙闸,进水口前缘设高2.0m的拦沙坎,坎内进水口前布置生态输水管进口,通过生态输水管将进水口前的沉积物排至下游。组成泥沙"拦、排"系统,有效地解决了推移质泥沙进入取水口问题。
In order to reduce the influence of the sediment on in Gucheng Hydropower Station, which could be described as the reservoir storage ＂flood discharging capacity, a specific layout is adopted and sediment flushing in front direc- tion, and water intaking in lateral direction＂. Two flood discharging and sediment flushing gates are arranged in the head dam. While, a two-meter high sediment barrier is set on the intake front edge. Entrance of an ecological water di- version pipe is then set after the sediment barrier and before the water intake. Thus, the sediment before the water in- take could be flushed downstream through the ecological water diversion pipe. With this sediment barrier and flushing system, the sedimentation problem in the water intake is effectively resolved.
出处
《水电与新能源》
2017年第5期39-42,共4页
Hydropower and New Energy
关键词
古城水电站
塔式进水口
防沙
基础
Gucheng Hydropower Station
tower-type water intake
sediment control
design
