水电站进水口排沙底孔的型式  

Type of desilting bottom intake for hydropower station

作　　者：戴晓兵[1] 李延农[1] 陈曙光[1] 

机构地区：[1]中南勘测设计研究院,湖南长沙410014

出　　处：《水利水电技术》2005年第10期20-22,26,共4页Water Resources and Hydropower Engineering

摘　　要：在多沙河流上,无论是高坝大库的高水头电站,还是低水头河床式枢纽,电站进水口的取水排沙历来是一个倍受关注的问题。文中介绍了2个电站进水口排沙底孔的泥沙模型试验情况,提出了一种新的“格栅式排沙廊道+排沙底孔”的组合型式(简称格栅式排沙底孔),取得了理想的排沙效果,较好地解决了工程实际问题。格栅式排沙底孔对其他同类型工程具有一定的借鉴作用。On the heavy silt-laden rivers, desihing at the water intake of hydropower station is a problem widely concerned not only for the large reservoir with high dam and high water head, but also for the runoff river hydropower station with lower water head. The sediment model tests for the desilting bottom intakes of two hydropower stations are introduced herein, in which a new combined type of “grid desihing gallery ＋ desihing bottom intake” （ grid desilting bottom intake） is put forward. The ideal desihing effect is obtained by the grid desihing bottom intake, and then the relevant engineering problem in practice is solved as well, which provides a good reference for other similar projects.

关 键 词：水电站 进水口 格栅式排沙廊道 排沙底孔 

分 类 号：TV32[水利工程—水工结构工程]