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Comprehensive arrangement of combining tunnel-type nature-like fishway with fish lock and application method thereof

A technology imitating nature and fish gates, applied in the field of assisting migratory fish to cross dams, it can solve the problems of spending a lot of time and water level fluctuation, and achieve the effect of speeding up the speed of fish crossing.

Active Publication Date: 2016-07-06
CHANGJIANG SURVEY PLANNING DESIGN & RES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the large fluctuations in the water level of fish passing upstream in some projects, it is difficult for ordinary fishway outlet layout schemes to adapt to such large water level fluctuations; It takes a lot of time for the school to swim upstream in the main body of the fishway

Method used

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  • Comprehensive arrangement of combining tunnel-type nature-like fishway with fish lock and application method thereof
  • Comprehensive arrangement of combining tunnel-type nature-like fishway with fish lock and application method thereof
  • Comprehensive arrangement of combining tunnel-type nature-like fishway with fish lock and application method thereof

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Embodiment Construction

[0029] The implementation of the present invention will be described in detail below in conjunction with the accompanying drawings, but it does not constitute a limitation of the present invention, and is only used as an example. At the same time, the advantages of the present invention will become clearer and easier to understand through the description.

[0030] Such as Figure 1-7 Shown, the tunnel type imitation natural fishway designed by the present invention combines the integrated arrangement of fish gate, and it mainly utilizes fishway main body 4 to connect the downstream riverbed 14 of power plant 8 and the waters of upstream reservoir 15. The fishway main body 4 is a tunnel type, arranged inside the mountain next to the powerhouse 8 of the power station.

[0031] The fishway inlet section 3 on the downstream side of the fishway main body 4 is close to the downstream side of the river, and is arranged on the downstream riverbed 14 . The farthest end on the downstr...

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Abstract

The invention discloses a comprehensive arrangement of combining a tunnel-type nature-like fishway with a fish lock and an application method thereof. Downstream beds and upstream reservoir water areas are connected through a fishway main body and the fish lock; the fishway main body is arranged in mountains beside powerhouses and comprises side walls, a bottom board and a top arch; a plurality of contraction sections are arranged in the fishway main body to separate the fishway main body into a plurality of fishway pond chambers; and the fish lock is sequentially provided with a fish lock downstream working gate, a movable fish driving device, a stilling basin, a fish lock upstream working gate and a stoplog gate from the downstream side. The comprehensive arrangement disclosed by the invention can be adapted to large and rapid changes of upstream water levels of reservoirs and narrow landforms of beds and has the advantages that fishes are guided to pass according to the different upstream water levels; appropriate water temperature, flow and flow velocity are provided for fish migration; the natural aquatic environments of rivers can be simulated; the excavation volume and the engineering design and the construction difficulties are reduced; and the construction cost is reduced while the fish passing effect is guaranteed at the same time.

Description

technical field [0001] The invention belongs to the field of water conservancy engineering and environmental protection engineering, and relates to a comprehensive layout of a tunnel-type imitation-natural fishway combined with a fish gate for migratory fish to go up through a river-blocking structure, and also relates to the benefits of the tunnel-type imitation-natural fishway combination The comprehensive arrangement of fish locks is used to assist migratory fish to cross the dam, and it is to solve the technical problem of migratory fish going up and back to cross the dam. Background technique [0002] Building dams on natural rivers has blocked the migration channels of fish. At home and abroad, it is generally remedied by building fish passages and other fish passing facilities. As my country's hydropower construction is increasingly advancing to the upper reaches of rivers, the construction of hubs in mountainous rivers often encounters terrains with narrow riverbeds ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02B8/08E02B1/00
CPCY02A40/60E02B8/085E02B1/006
Inventor 钮新强宋志忠朱世洪廖仁强周述达郭红亮
Owner CHANGJIANG SURVEY PLANNING DESIGN & RES
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