某水库溢流坝消能型式研究  

Research on Energy Dissipation Type of Overflow Dam in a Reservoir

作　　者：张格[1] 刘亚坤[1] 孙洪亮[1] 周乐[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》2013年第4期183-186,共4页Journal of Water Resources and Architectural Engineering

摘　　要：泄水建筑物消能型式的选择通常需要经过模型试验的验证来确定其方案。针对某水库水利枢纽工程泄洪时下游河床冲刷等问题,分别选择异型宽尾墩、差动式挑坎和异型宽尾墩+差动式挑坎等消能方式进行消能研究。通过对比试验中不同研究方案测得的冲刷特征值,推荐采用异型宽尾墩+差动式挑坎联合运用的消能方案。试验结果表明,异型宽尾墩+差动式挑坎这种综合消能方案与原工程设计方案的平尾墩方式相比,可以有效地消杀泄洪水流入水时的能量,从而减轻泄洪水流对下游河床的冲刷,达到保护工程安全运行的目的。The model experiment is usually used to choose the type of energy dissipation in release structures.Here,several kinds of energy dissipators such as irregular broad tail pier,differential flip bucket,and the combination of the irregular broad tail pier and differential flip bucke are used to solve the scour problems caused by the flood discharge of a reservoir.By comparing the scour characteristic values of all model tests,the energy dissipation scheme combined with the irregular broad tail pier and differential flip bucket is recommended.The test results show that the recommended combination energy dissipation scheme is better than the primary scheme with flat gate pier in the respect of project safety,which could eliminate the energy of flood effectively,thus reducing the downstream scour and protecting the project to operate safely.

关 键 词：水利工程 消能 异型宽尾墩 差动式挑坎 冲刷特性 模型试验 

分 类 号：TV652.1[水利工程—水利水电工程]