| 倒U型泄洪洞水力特性试验研究 |
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| 引用本文： | 王均星,冯艳.倒U型泄洪洞水力特性试验研究[J].武汉大学学报(工学版),2010,43(6). |
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| 作者姓名： | 王均星 冯艳 |
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| 作者单位： | 1. 武汉大学水资源与水电工程科学国家重点实验室,湖北,武汉,430072
2. 中国水电顾问集团中南勘测设计研究院,湖南,长沙,410000 |
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| 摘 要： | 雷公洞枢纽是岩溶地区堵塞溶洞形成的水利水电工程,受其特殊的地形地质条件限制,泄洪洞采用了较为罕见的倒U型布置,洞内最大水头140m,下游陡坡泄槽段最大流速高达50m/s左右,各种因素使得本工程泄洪洞水力特性变得十分复杂.通过模型试验研究这种高水头、高流速且布置形式特殊的泄洪洞水力特性:水流流态、压力、流速以及空化情况等,并比选了不同的闸门方案及闸门槽与下游泄槽之间的衔接段体型,给出了泄洪洞体型的优化修改意见,研究成果可为类似工程设计提供参考.
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| 关 键 词： | 泄洪洞 水力特性 模型试验 体型优化 |
Experimental research on hydraulic characteristics of inverted U-shaped spillway tunnel |
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| WANG Junxing,FENG Yan.Experimental research on hydraulic characteristics of inverted U-shaped spillway tunnel[J].Engineering Journal of Wuhan University,2010,43(6). |
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| Authors: | WANG Junxing FENG Yan |
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| Abstract: | The Leigongdong project is formed by blocking cave in karst area.Considering the limitation of special geological condition of the Leigongdong location,the infrequent inverted U-shaped spillway tunnel is chosen.For this tunnel,the maximum head is 140 m and the maximum velocity is 50 m/s.The hydraulic characteristics of this spillway tunnel are very complex because of various factors.Based on model test,the hydraulic characteristics of such special spillway are studied,of which the head and flow velocity are high.The hydraulic characteristics include water flow regime,pressure,flow velocity,cavitation,etc.Meanwhile,through comparing and selecting different gate schemes and the configuration of connecting section,the configuration layout is optimized.The paper is supposed to provide reference for spillway tunnel design with similar conditions. |
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| Keywords: | spillway tunnel hydraulic characteristics model test configuration optimization |
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