| 三道湾水电站正常溢洪洞及泄洪排 |
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| 引用本文： | 马振海,武维新,王国杰,梁宗祥.三道湾水电站正常溢洪洞及泄洪排[J].中国农村水利水电,2006,0(7):85-87. |
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| 作者姓名： | 马振海 武维新 王国杰 梁宗祥 |
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| 作者单位： | 1. 西北农林科技大学水利与建筑工程学院,陕西,杨凌,712100
2. 甘肃省水电勘测设计院,兰州,730000 |
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| 摘 要： | 试验表明，三道湾水电站原设计存在以下问题：泄洪排沙洞单独全开运行工况下，其进口上方存在贯通性吸气漏斗漩涡；正常溢洪洞进口侧收缩十分严重，泄流量不足，闸后存在水翅、折冲波等不良流态，下游消能效果不佳；针对实际情况，试验通过在泄洪排沙洞进口增设消涡格栅，在正常溢洪洞进口设置椭圆形导墙、延长闸后收缩段，下游采用扩散挑流消能等措施，很好地解决了上述问题。
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| 关 键 词： | 水工模型试验 流态 漏斗漩涡 消能 |
| 文章编号： | 1007-2284(2006)07-0085-03 |
| 收稿时间： | 2005-10-14 |
| 修稿时间： | 2005年10月14 |
Experimental Study on Normal Spillway and Flood-Release & Sediment Sluice in Sandaowan Hydropower Station |
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| MA Zhen-hai, WU Wei-xin, WANG Guo-jie, LIANG Zong-xiang.Experimental Study on Normal Spillway and Flood-Release & Sediment Sluice in Sandaowan Hydropower Station[J].China Rural Water and Hydropower,2006,0(7):85-87. |
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| Authors: | MA Zhen-hai WU Wei-xin WANG Guo-jie LIANG Zong-xiang |
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| Institution: | 1. College of Hydraulic and Architecture Engineering, Northwest University of Agricultural and Forestry Science and Technology, Yangling 712100, Shaanxi Province; 2. Gansu Provincial Institute of Hydropower Design, Lanzhou 73000 |
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| Abstract: | Experiments show that there are following problems exist in the original design of the Sandaowan Hydropower Station: Transfixion funnel vortex happens at the inlet of the flood release sediment sluice;side contraction is serious at the inlet of normal spillway,and discharge is insufficient;water wing and refraction exist behind sluice,so the energy dissipation effect is not desirable.Aiming at the actual conditions,the problems are solved by adding vortex-elimination grid at the inlet of the flood-release and sediment sluice,installing ellipse diversion wall at the inlet of normal spillway,prolonging contraction reach behind sluice;and adopting diffusive trajectory energy dissipation downstream. |
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| Keywords: | hydraulic model test flow pattern funnel vortex energy dissipation |
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