| 四零四厂取水枢纽防沙设计及试验验证 |
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| 引用本文： | 马振海,武维新.四零四厂取水枢纽防沙设计及试验验证[J].泥沙研究,2005(3):72-75. |
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| 作者姓名： | 马振海 武维新 |
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| 作者单位： | 西北农林科技大学,水利与建筑工程学院,陕西,杨凌,712100;甘肃省水电勘测设计研究院,甘肃,兰州,730000 |
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| 摘 要： | 由于上游昌马水库采用泄空排沙运行方式,四零四厂取水枢纽的防沙任务十分艰巨。试验表明,设计通过合理选择取水口位置、布置闸前局部防沙设施,以及两次表层取水,有效地解决了枢纽的防沙问题;特别是取水口前纵向螺旋流的存在,不仅保证了昌马水库泄空期间的大量底沙可顺利排往取水枢纽下游,同时取水口前又可实现“门前清”的最佳防沙效果。
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| 关 键 词： | 取水口 防沙设计 试验研究 |
| 文章编号： | 0468-155X(2005)03-0072-04 |
| 修稿时间： | 2004年8月4日 |
Experimental verification and design of sediment prevention of 404 water diversion project |
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| MA Zhen-hai,WU Wei-xin.Experimental verification and design of sediment prevention of 404 water diversion project[J].Journal of Sediment Research,2005(3):72-75. |
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| Authors: | MA Zhen-hai WU Wei-xin |
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| Affiliation: | MA Zhen-hai~1,WU Wei-xin~2 |
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| Abstract: | Because the upstream reservoir discharges a great quantity of sediment in the period of emptying scour, 404Water Diversion Project will encounter many difficulties during water diversion and sand control. According to the design, the measures of sediment prevention include the following aspects: (1) locating of the water intake accord with the laws of water and sediment flow;(2) arranging local structures preventing sediment in front of the sluice; (3) diverting surface_layer water twice. The result of experiment proves that these measures are valid; especially, longitudinal spiral flow plays an important role in water diversion and sediment prevention for 404 Water Diversion Project. |
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| Keywords: | water intake sediment prevention design experimental study |
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