Analysis of Hydraulic Characteristics of Vertical Seam Fishway

Vertical seam fishway is a kind of efficient crossing channel to meet the migratory needs of fishes. It has the characteristics of simple structure, strong ability to adapt to water level changes and good energy dissipation effect. It is also the most common crossing engineering facilities at present. The facility simulates the environment of a natural waterway, providing a safe path for fish and guiding fish to their destination, thus reducing the impact of water conservancy projects on the ecological environment. Its hydraulic characteristics have an important influence on the smooth migration of fish. Through research related literature, this paper briefly introduces the development of vertical tunnel in home and abroad and development status, organize and analyzes the vertical tunnel research method and research progress, and discusses the development trend of the future, in order to optimize the structure of tunnel design and ensure the efficiency of fish facilities.