A study on optimizing the structure of fish way

Mao Xi; Li Jia; 易文敏; 罗小凤

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A study on optimizing the structure of fish way

更新时间：2023-11-14

- A study on optimizing the structure of fish way
- Advanced Engineering Sciences Vol. 43, Issue Z1, Pages: 54-59(2011)
- 作者机构：
  
  四川大学水力学与山区河流开发保护国家重点实验室
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2011，
  
  Published Online：31 March 2011，
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毛熹,李嘉,易文敏,罗小凤.鱼道结构优化研究（“研究生论坛”稿件）[J].工程科学与技术,2011,43(Z1):54-59.

Mao Xi, Li Jia, 易文敏, et al. A study on optimizing the structure of fish way. [J]. Advanced Engineering Sciences 43(Z1):54-59(2011)
毛熹,李嘉,易文敏,罗小凤.鱼道结构优化研究（“研究生论坛”稿件）[J].工程科学与技术,2011,43(Z1):54-59. DOI：

Mao Xi, Li Jia, 易文敏, et al. A study on optimizing the structure of fish way. [J]. Advanced Engineering Sciences 43(Z1):54-59(2011) DOI：

摘要

中文摘要: 大坝切断了鱼类的洄游路线，对鱼类的生长繁殖产生影响，尤以对洄游及半洄游性鱼类的影响为甚。某水电站所处河段是锥吻叶须鱼、横口裂腹鱼等半洄游性鱼类洄游的必经通道。为保护珍稀鱼类，修建了一座垂直竖缝式鱼道。对该鱼道进行一系列模型实验，通过模型实验，认为该鱼道内主流上的流速接近鱼类极限游泳速度，而且鱼道内水流扰动大，给鱼类洄游带来困难；提出了一种优化的新结构，使每一个水池都具有三级跌坎及一个凹槽，优化鱼道相比于原模型，鱼道内的平均流速降低了30%以上，水流也更为平缓，有利于鱼类洄游。另外，凹槽中形成静水区，可以为鱼类提供休息场所。

Abstract

Abstract:Dams cut off the migratory route of fish

especially to these migratory and half migratory fish

affects their growth and breeding greatly. A dam is on which some kinds of migratory fish’s migratory way

such as Ptychobarbus conirostris and Schizothora plagionstomus. In order to protect rare fishes

a vertical slot type fish way has been built. This study has carried on a series of model experiments upon the fish way

and found that in the prototype

velocity in these measure points which at the main stream approached to the fish burst speed. Meanwhile

flow regime in the prototype was disorder

these factors caused lots of difficulties for fishes’ migratory. Then we put forward a new kind of structure which has three-levels of fall-off bank and a groove in every pool. The contrast experiments showed that velocity in the new fish way has been cut down 30 percent at least

and flow regime has also changed gently. As the conclusion

the new fish way is better for migratory. Besides，the groove can provide resting place for fish as water in it is nearly static.

关键词

洄游鱼类竖缝式鱼道结构

Keywords

migratoryfishslot typefish waystructure

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State Key Lab. of Hydraulics and Mountain River Eng., Sichuan Univ.

College of Water Resources and Hydropower, Sichuan Univ.

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