| 高水头大流量泄洪洞挑坎体型优化及下游冲淤研究 |
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| 引用本文： | 余挺,贺昌林,张建民.高水头大流量泄洪洞挑坎体型优化及下游冲淤研究[J].四川大学学报(工程科学版),2007,39(4):20-25. |
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| 作者姓名： | 余挺 贺昌林 张建民 |
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| 作者单位： | 1. 四川大学,水力学与山区河流开发保护国家重点实验室,四川,成都,610065;中国水电顾问集团,成都勘测设计研究院,四川,成都,610072
2. 四川大学,水力学与山区河流开发保护国家重点实验室,四川,成都,610065 |
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| 基金项目： | 国家自然科学基金;国家自然科学基金委员会、二滩水电开发有限责任公司、雅砻江水电开发联合研究基金;国家自然科学基金 |
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| 摘 要： | 针对某水电站泄洪洞出口挑坎水力特性和下游河道冲淤特性进行了试验研究。结合水力参数和下游河道冲淤变化规律的测试，探讨了泄洪洞挑坎原设计方案存在的主要问题。对不同挑坎位置和体型进行了对比试验，分析了各个方案的优缺点，最终提出了水流条件、冲淤特性均较优的椭圆型挑坎。研究成果可为实际工程设计提供试验依据。
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| 关 键 词： | 泄洪洞 挑流水舌 挑坎优化 椭圆型挑坎 |
| 文章编号： | 1009-3087（2007）04-0020-06 |
| 收稿时间： | 2006/11/10 0:00:00 |
| 修稿时间： | 2006-11-10 |
Scour Downstream River and Optimum Geometry of Flip Bucket in
Tunnel with High Head and Large Discharge |
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| YU Ting,HE Chang-lin,ZHANG Jian-min,XU Wei-lin,PENG Yong.Scour Downstream River and Optimum Geometry of Flip Bucket in
Tunnel with High Head and Large Discharge[J].Journal of Sichuan University (Engineering Science Edition),2007,39(4):20-25. |
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| Authors: | YU Ting HE Chang-lin ZHANG Jian-min XU Wei-lin PENG Yong |
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| Affiliation: | The State Key Lab. of Hydraulics on High Speed Flows, Sichuan Univ., Chengdu 610065,China;The State Key Lab. of Hydraulics on High Speed Flows, Sichuan Univ., Chengdu 610065,China;The State Key Lab. of Hydraulics on High Speed Flows, Sichuan Univ., Chengdu 610065,China |
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| Abstract: | Experiments are carried out for the evolution of the hydraulic characteristics of the flow in the flip bucket and the scour downstream river. Measures are progressed for analyzing the feature of hydraulic characteristics and scour. Basic problems are evaluated with original design shape of flip bucket. Experimental data are obtained in different geometry of flip bucket and the general characteristics of the nappe and the scour are analyzed. On the base of experimental investigation, an optimum geometry is provided for the shape of flip bucket with the elliptic curve floor. These researches can be of help for the design in practical project and can be adopted by other projects. |
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| Keywords: | tunnel jumping nappe flip bucket optimum elliptic curve floor |
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