Tunnel type multi-outlet nature-like fish way

Abstract

The invention belongs to the field of water conservancy projects and environmental protection projects, and relates to a tunnel type multi-outlet nature-like fish way. A fish way body is connected to a downstream riverbed and the water area of an upstream reservoir and is arranged in a mountain beside a power station plant; a fish way inlet of the fish way body is formed in the riverbed in the downstream direction of the power station plant, and two or more fish way outlets of the fish way body are formed in the reservoir in the upstream direction of the power station plant and are located at different heights. The tunnel type multi-outlet nature-like fish way can adapt to the geographical condition that riverbeds are narrow and mountains on the two sides of river ways are high and steep or the limiting condition that the water levels of reservoirs in the upstream direction fall or rise rapidly or water-passing water levels are large in amplitude, the shortcomings that the construction workload of fish ways is large, the design and construction difficulty is high and the cost is high are overcome, and the influence to the terrestrial organisms on the mountains on the two sides of the river ways is reduced as much as possible.

Description

technical field [0001] The invention belongs to the fields of water conservancy engineering and environmental protection engineering, and relates to a tunnel-type multi-exit 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 migr...

AI Technical Summary

Problems solved by technology

[0007] In view of the deficiencies in the prior art above, the purpose of the present invention is to provide a tunnel-type multi-exit imitation natural fishway, which can not only adapt to the geographical conditions of narrow riverbeds and high and steep mountains on both sides of the riverway, but also overcome the large amount of fishway construction work, The design and construction are difficult and expensive, and it can minimize the impact on the terrestrial animals and plants on the mountains on both sides of the river. More importantly, it can realize that even when the water level of the upstream reservoir rises and falls sharply, the fishway can provide Conditions for adapting to fish ascending

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