Step-type fish passage facilities suitable for steep slope of high dam and control method

Abstract

The invention discloses step-type fish passage facilities suitable for the steep slope of a high dam and a control method, and relates to intersection fields of aquatic engineering and hydraulic engineering, in particular to a fishway building suitable for the steep slope of the high dam and a fish passage control method. The fishway in the invention is a step-type fishway building established onthe steep slope of the dam body, which is combined by step-type relays of a plurality of rectangular pools, and also comprises a fish passage monitoring system, a computer automatic control system, anoverflow water fish luring device in the fishway and a fish luring device of inlet and outlet of the fishway. The invention can lead the migratory fish to pass the dam timely without injure of the migratory fish and has the outstanding features of low physical ability consumption, no inverse effects on gonadal development, high automatic degree, relative shorter fishway (steep slope) and saving investment and the like, thus fundamentally changing the defect that other structural types of fishway pass through the high dam.

Description

Technical field: [0001] The invention relates to the intersection field of aquatic engineering and water conservancy engineering, in particular to a fishway structure suitable for steep slopes of high dams and a fish passing control method. Background technique: [0002] The protection of aquatic organisms is a very important issue in water conservancy and hydropower projects. During the construction of large-scale water conservancy and hydropower projects, the state has issued a number of relevant regulations and laws for the protection of fish resources to protect the upper water caused by the construction of dams. Blocking downstream aquatic animals, maintaining the balance of the ecosystem and species diversity, Article 27 of the "Water Law of the People's Republic of China" clearly states: "The state encourages the development and utilization of water resources. If permanent barrages and dams are to be built on certain rivers, the construction unit shall simultaneously ...

AI Technical Summary

Problems solved by technology

[0007] 3. The vertical vertical seam type is also called the trough type. It is a form with relatively many applications and has a steep slope (1 / 10-1 / 4). Its advantage is that it can pass fish continuously, ensuring that fish pass the dam in time. Mechanical Few faults and low operating costs, but for the current large-scale steep slope and high dam type water conservancy project, due to the construction of long fishways, the project investment is relatively large, and at the same time, due to the high flow velocity and long fishways in the fishways, fish The physical energy consumption is too large to complete the upward tracing, and the cost of the fishway is relatively high

Images