Study on the Proceeding of Hydraulic Problem of Simulating natural Fish Passage

Conference Topics: Environmental and Ecological Impacts-Fish passage Fish passages in water conservancy projects are important means of improving river connectivity and reducing the impacts on the ecological environment. Simulating natural fish passage, which repairs the fish ecological corridor by changing the structure and section type of the traditional artificial fish passage similar to a natural fish way, has been promoted and applied in recent years. Furthermore, the hydraulic research on the simulating of natural fish passage has made great progress. In this paper, the structural characteristics and requirements of the key factors that affect the fish’s passing through these structures are analyzed by several cases of typical fish passage in China and other countries. The hydraulic problems involved, the determination method, and the interaction rules of the hydraulic essential factor of the simulating natural fish passage are presented in this paper.