| 溢流槽对定期冲洗式沉沙池沉淀效率的影响分析研究 |
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| 引用本文： | 刘焕芳,宗全利. 溢流槽对定期冲洗式沉沙池沉淀效率的影响分析研究[J]. 泥沙研究, 2007, 9(1): 44-48 |
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| 作者姓名： | 刘焕芳 宗全利 |
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| 作者单位： | 石河子大学,水利建筑工程学院,新疆,石河子,832003;西北农林科技大学,水利与建筑工程学院,陕西,杨凌,712100;石河子大学,水利建筑工程学院,新疆,石河子,832003 |
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| 基金项目： | 教育部高等学校优秀青年教师教学科研奖励计划;石河子大学校科研和教改项目;石河子大学高层次人才科研启动资金专项 |
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| 摘 要： | 通过在溢流堰上沿水流方向加设溢流槽对传统沉沙池进行了改进，以提高沉沙池的沉淀效率；从理论上分析了溢流槽对溢流堰水流吸出高度和出池水流含沙量的作用，并通过模型试验进行了验证，结果表明：加设溢流槽后，沉沙池的沉淀效率有了大幅度的提高，溢流堰的出池水流平均含沙量最大降幅可达94．8％；最后根据试验结果，给出了溢流槽的设计方法。
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| 关 键 词： | 沉沙池 溢流槽 沉淀效率 |
| 文章编号： | 0468-155X（2007）01-0044-05 |
| 收稿时间： | 2005-11-28 |
| 修稿时间： | 2005-11-28 |
Study on effect of spillway trough on deposition efficiency of intermittent scouring sand basins |
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| LIU Huan-fang,ZONG Quan-li. Study on effect of spillway trough on deposition efficiency of intermittent scouring sand basins[J]. Journal of Sediment Research, 2007, 9(1): 44-48 |
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| Authors: | LIU Huan-fang ZONG Quan-li |
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| Affiliation: | 1. College of Hydraulic and Constructional Engineering, Shihezi University, Shihezi 832003, China; 2. College of Water Resources and Architectural Engineering, Northwest Sci-Tech University of Agriculture and Forestry, Yangling 712100, China |
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| Abstract: | In order to improve the deposition efficiency,the traditional sand basin has been improved by adding a spillway trough on spillway crest along the flow direction.The influence of spillway crest's suction head and sediment concentration, which is influenced by spillway trough,have been analyzed theoretically and verified by model experiment.The results of experiment indicate that the deposition efficiency has been improved greatly,and the biggest fall range of spillway crest's sediment concentration is about 94.8 percent after adding spillway trough.Finally based on the results of experiment,the design method of spillway trough is given. |
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| Keywords: | sand basin spillway trough deposition efficiency trough |
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