水电站凸岸引水防沙试验研究

Experimental study of water intake and sediment control on convex bank of hydropower station

任河是典型的山区河流,洪水来势凶猛,且泥沙含量大。坐落其上的蹇家湾水电站是以发电为单一开发目标的引水式电站,除设计洪水流量以上均需要正常发电,又因电站取水口位于主河道凸岸,所以电站取水口的引水防沙问题十分突出。本文通过水工模型试验,对该电站引水防沙进行了系统深入的研究,并对枢纽布置及结构尺寸进行优化,从而较好解决了电站的引水防沙问题。

The Renhe river is a typical mountainous river with heavy sediments.The Jianjiawan Hydropower Station with a single development purpose of power generation stands on it.The problem of water intake and sediment control is very serious because the water inlet is designed on the convex bank as the hydropower station is operated all the year except the design flood or more is encountered.This paper makes a study of water intake and the sediment control through the hydraulic model test.Also the layout of hydro-junction and dimensions of structures are optimized.Consequently,the problem of water intake and sediment control is solved well.