摘要
某闸坝枢纽作为天然河道上的永久性水工建筑物,其修建将对原河道天然水生生态环境连续性产生阻隔,影响鱼类洄游繁殖。为保障鱼类洄游成效,需要在枢纽上修建鱼道。针对鱼道设计方案能否满足水力学条件的问题,进行了不同水位组合条件下鱼道的整体水力特性和鱼道进出口数量与布置的研究。采用比尺为1∶16的物理模型试验方法,验证鱼道设计方案的合理性。结果表明,在推荐的鱼道布置和进口段采取补水措施下,各项水力指标均能满足规范和设计要求;当鱼道进口主流流速较小时,需要采用进口段补水措施满足诱鱼设计要求。
As a permanent hydraulic structure on a natural river,the construction of a certain dam hub will create a barrier to the continuity of the natural aquatic ecological environment of the original river,affecting the migration and reproduction of fish.To ensure the effectiveness of fish migration,it is necessary to build fish lanes on the hub.We carry out the study on the overall hydraulic characteristics of the fishway and the number and layout of its inlet and outlet under different water level combinations,in order to determine whether the design scheme of the fishway can meet the hydraulic conditions.We use a physical model test method with a scale of 1:16 to verify the reasonability of the fishway design scheme.The results show that under the recommended layout of the fishway and the implementation of water replenishment measures in the inlet section,all hydraulic indicators can meet the codes and design requirements.When the mainstream flow velocity at the entrance of the fishway is relatively low,it is necessary to adopt inlet section water replenishment measures to meet the requirements of fish-luring design.
作者
胡东
张震
王勤振
HU Dong;ZHANG Zhen;WANG Qinzhen(Huai an Port and Shipping Business Development Center,Huai an 223001,China;CCCC Water Transportation Consultants Co.,Ltd.,Beijing 100007,China)
出处
《水运工程》
2024年第5期156-162,219,共8页
Port & Waterway Engineering
关键词
结构形式
水流流态
水力特性
模型试验
structural form
flow regime
hydraulic characteristics
model test
作者简介
胡东(1989-),男,工程师,从事内河船闸、港口、航道水运业务的管理与研究。
