Tunnel type imitation natural fishway

Abstract

The invention belongs to the fields of water conservancy engineering and environmental protection engineering, and relates to a tunnel type imitation natural fishway. The main body of the fishway connects the downstream riverbed and the waters of the upstream reservoir, and the main body of the fishway is set inside the mountain next to the powerhouse of the power station; the entrance of the fishway is set in the downstream riverbed of the powerhouse of the power station; the outlet of the fishway is set in the powerhouse In the upstream reservoir of the factory building; the main body of the fishway is composed of side walls on both sides, a bottom plate at the bottom and a top arch at the top; a plurality of shrinkage sections are arranged in the main body of the fishway to divide the main body of the fishway into multiple fishways. Road pond chamber; the fish passage vertical seam on each contraction section communicates with two adjacent fish passage pond chambers. The invention can not only adapt to the topographical conditions of narrow riverbed and high and steep mountains on both sides of the river, but also overcome the shortcomings of large excavation volume, high difficulty in design and construction, and high cost of the open-cut fishway construction scheme, and can minimize the impact on the two sides of the river. Influence of terrestrial flora and fauna on the mountain.

Description

technical field [0001] The invention belongs to the fields of water conservancy engineering and environmental protection engineering, and relates to a tunnel type imitation natural fishway. Background technique [0002] Migration is the periodic directional back and forth movement of fish due to the influence of physiological requirements, genetics and external environmental factors. Migration is a characteristic formed during the phylogenetic process of fish, and it is a long-term adaptation of fish to the environment, which can enable the population to obtain more favorable living conditions and reproduce better. Nowadays, in order to obtain water energy, human beings build dams on natural rivers, which block the migration channels of fish and seriously damage the natural ecological environment in the rivers. In order to remedy the damage caused to the river, human beings designed and built various fish passing facilities when building barrage dams to help migratory fish ...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the deficiencies of the above-mentioned prior art, the object of the present invention is to provide a tunnel-type imitation natural fishway, which can not only adapt to the topographical conditions of narrow riverbeds and high and steep mountains on both sides of the riverway, but also overcome the large amount of construction work of open-cut fishways. , high difficulty in design and construction, and high cost, and can minimize the impact on terrestrial animals and plants on the mountains on both sides of the river

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