低水头航电枢纽消力池消能及过沙效果研究  

Study on effect of energy dissipation and over sand of stilling basin in low-head navigation hydro-junction

作　　者：彭鑫 扈世龙[2] 叶玉康 

机构地区：[1]长沙市湘江综合枢纽开发有限责任公司,长沙410200 [2]长沙理工大学,长沙410076

出　　处：《水道港口》2015年第3期234-238,共5页Journal of Waterway and Harbor

摘　　要：结合某低水头航电枢纽泄水闸断面水工模型,对消力池布置方式和差动式尾槛对消能及过沙效果的影响进行模型试验研究。结果表明,将消能墩摆放在泄水闸局部开启时底流最大流速区附近且适当调整消力池长度,以及合理设计差动式尾槛的出池坡度和尾槛长度,可以在保证消力池消能效果的同时,增强消力池内过沙效果。On the basis of cross-sectional hydraulic model test of a low-head navigation hydro-junction, the in-fluences of stilling basin arrangement and differential tail sill on energy dissipation and over sand effect were stud-ied. The results show that in order to guarantee the effect of energy dissipation and enhance the effect of over sand,the energy dissipation piers are located near the maximum velocity zone of end flow, and the length of the stilling ba-sin is adjusted. The slope out of the pool and the last sill length of differential tail sill are designed rationally.

关 键 词：泄水闸 消能工 模型试验 消能率 过沙效果 

分 类 号：TV135.1[水利工程—水力学及河流动力学]