摘要
以大石桥水电站重力坝为例,采用比尺为1∶25的正态物理模型,针对典型的低水头重力坝闸门开启过程中消力池的时空水力特性问题进行试验研究。通过物理模型试验,获得了闸门开启过程中消力池流态、流速分布、底板压力等水力参数随时间的变化规律,验证了原型闸门开启速率的合理性。试验结果表明,消力池底板在闸门开启过程中是安全的,说明原型闸门开启速率设计合理。
Aiming at the spatio-temporal hydraulic characteristics of the stilling basin for a typical low-head gravity dam during the gate opening process,a normal physical model with a scale of 1∶25 is used to test and study the gravity dam of Dashiqiao Hydropower Station.The flow state,velocity distribution,bottom plate pressure and other hydraulic parameters in the opening process of the gates are obtained,and the rationality of the opening rate of prototype gate is verified.The experimental results show that the bottom plate of stilling basin is safe during the opening process of gates,indicating that the opening rate of prototype gate is designed to be reasonable.
作者
李桢
柳树摇
李红
LI Zhen;LIU Shuyao;LI Hong(Sichuan Water Conservancy Vocational College,Chengdu 611231,Sichuan,China;Sichuan Neijiang Water Conservancy and Electric Power Construction Survey and Design Research Institute Co.,Ltd.,Neijiang 641000,Sichuan,China)
出处
《水力发电》
CAS
2021年第7期111-115,共5页
Water Power
关键词
低水头
闸门开启
消力池
时空水力特性
模型试验
大石桥水电站
low water head
gate opening process
stilling basin
spatio-temporal hydraulic characteristics
model test
Dashiqiao Hydropower Station