Winding type fishway

A circuitous and fishway technology, applied in the field of high head dams and circuitous fishways, can solve the problems of column stability, single fishway form, inability to adjust flexibly, etc., and achieves low construction difficulty, space saving, and energy saving. The effect of project cost
CN104294803AInactive Publication Date: 2015-01-21SICHUAN UNIV
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
SICHUAN UNIV
Publication Date
2015-01-21
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention belongs to the technical field of hydroengineering and provides two winding type fishways. Each winding type fishway comprises side walls, a base board, partition boards and guide boards, wherein the side walls are located on the two sides of the base board, the partition boards and the guide boards are arranged on the inner walls of the side walls, the fishway is divided into a plurality of pool chambers through the partition boards and the guide boards, and all the pool chambers are communicated with one another. The first fishway is arranged on a mountain on the side of a dam, the downstream end of the first fishway is located underwater in the downstream river channel of the dam, the upstream end of the first fishway is located underwater in the downstream river channel of the dam, and the shape of the first fishway is spiral or in a screw-like shape. The second fishway is composed of a first section, a third section and a second section, wherein the first section is located on the surface of the dam body, located on the downstream side, of the dam, the third section is located on the surface of the dam body, located on the upstream side, of the dam, the second section is located in the dam body and enables the first section and the third section to be communicated with each other, the downstream end of the second fishway is located underwater in the downstream river channel, the upstream end of the second fishway is located underwater in the upstream river channel, and the shape of the fishway is in the shape of a broken line.
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Description

technical field

[0001] The invention belongs to the field of water conservancy and hydropower engineering, and relates to a circuitous fishway, in particular to a high-head dam suitable for complex terrain conditions. Background technique

[0002] With the gradual acceleration of the development of water conservancy and hydropower resources in my country, the degradation of natural fishery resources has become increasingly serious. The development of water conservancy and hydropower resources has endangered the rare and endemic fish in national nature reserves. With the strengthening of the awareness of social ecological environment protection, the research and construction of fish passing facilities has been paid more attention. Existing fishways are generally only suitable for low-head water conservancy projects with dam heights below 20-25m. The fish passing facilities used in medium-high head water conservancy projects mainly include fish gates, fish lifts, and fish cont...

Claims

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