Reinforced concrete frame rotating and lifting fishway for medium-high water head

Abstract

The invention discloses a reinforced concrete frame rotating and lifting fishway for a medium-high water head. The reinforced concrete frame rotating and lifting fishway comprises a U-shaped groove-shaped square or multi-time rotating and lifting fishway in a Chinese character 'hui (return)' and a cast-in-place reinforced concrete frame for supporting the fishway. The fishway uses a cast-in-place reinforced concrete frame top plate as a base plate, projections of all steps of the fishway in the vertical direction are mutually overlapped, fishway pool chambers are separated by adopting slit partition plates, the bottom slopes of the fishway pool chambers are 1: 10-40, rest pools are arranged at all 90-degree and 180-degree turning positions and are flat bottoms, and the multi-time rotating and lifting fishway rotates and lifts from a downstream water level to an upstream water level. The rest pools are arranged at all the 90-degree and 180-degree turning positions, so that rest and migration tracing of fishes are facilitated. The reinforced concrete frame rotating and lifting fishway is small in occupied area, flexible in arrangement, light in structure and good in adaptability and can solve the problem that the fishway is difficult to arrange in high mountain canyons and narrow spaces. The frame structure fishway is small in construction operation face, small in construction difficulty, small in work amount and low in construction cost, reduces engineering investment and brings good economic benefit.

Description

technical field [0001] The invention relates to a fish passing facility, in particular to a reinforced concrete frame rotating plate lifting fishway for medium and high water heads. Background technique [0002] With the increasing awareness of ecological environment and fish protection, it has become a normal and important content to build fish passages and other fish passing facilities in water conservancy and hydropower projects. Fishway is an important facility for communicating fish migration routes. It has its unique advantages and functions in communicating migration routes on water conservancy hubs, and it cannot be completely replaced by other fish passing facilities. In recent years, fishways with medium and high water heads have gradually appeared. Due to the long lines and large fluctuations in water levels, and most of them are located in alpine valleys, there are many site restrictions, which makes the challenges faced in the process of determining fishway engi...

AI Technical Summary

Problems solved by technology

The project of filling rubble concrete under the fishway is huge, and the cost and investment of the project are huge; the project of extending the rock wall beams to support the fishway often needs to excavate the mountain wall, which is difficult to construct and has high requirements on the lithology of the mountain

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