冲击墩、台阶与消能塘联合消能的试验研究  

Research on Comprehensive Energy Dissipation of Bottom-flow with Shock Pier,Stairs and Stilling Basin

作　　者：杜凌云[1] 刘亚坤[1] 

机构地区：[1]大连理工大学水利工程学院,辽宁大连116024

出　　处：《水利与建筑工程学报》2014年第4期162-165,共4页Journal of Water Resources and Architectural Engineering

基　　金：国家自然科学基金"黄土沟坡重力侵蚀过程现场试验研究"(51179021)

摘　　要：对泄水建筑物消能工形式的选择是水能资源开发中的重要环节。某水利工程输水洞下游消能塘采用冲击墩、台阶与消能塘联合消能的方式进行消能设计,为研究三种消能工的消能效果,通过模型试验对其消能工的消能率进行对比分析,共进行两种工况的消能方案计算,分别为冲击墩与消能塘联合消能、冲击墩与台阶及消能塘三者联合消能。计算结果表明,三者联合消能方式可以有效消除输水洞水流入塘时的能量从而减轻水流对下游河床及岸边的冲刷,达到保护工程安全的目的。It’s important to choose an appropriate type of energy dissipation in discharge structures .Here ,three kinds of dissipaters ,which were shock pier ,stairs and stilling basin were designed to dissipate energy in the downstream of the water conveyance tunnel in a hydraulic project .To study the effect of the three energy dissipaters ,model test was adopted to research the energy dissipation rate in this paper .Two conditions of energy dissipations were calculated ,including the combination of shock pier with stilling basin and the combination of shock pier ,stairs and stilling basin .The test results prove that the combination of the three energy dissipaters is effective in eliminating energy of flood flows when they reach the stilling basin of the water conveyance tunnel ,thus reducing the scour to the waterbed and river banks in the down-stream and protecting the project for it to operate safely .

关 键 词：消能工 冲击墩 台阶 消能塘 模型试验 

分 类 号：TV653[水利工程—水利水电工程]