一种水库导流排沙新方案的模型试验研究

发布时间：2018-05-14 17:35

本文选题：水库淤积 + 模型试验　；参考：《长江科学院院报》2017年04期

【摘要】：我国水库泥沙淤积十分严重,水利工作者在水库排沙研究方面取得了许多骄人的成绩,但在小流量排沙方面研究较少。采用水工动床模型试验,通过对不同流量导流排沙效果的分析,证明小流量采用导流排沙方案的优势,为水库发生小流量时进行排沙提供了新思路,也为水库排沙提供了新方案。通过是否设导流墙的排沙试验分析,证明导流排沙及其它流量排沙时水深对冲沙的影响,并提出最佳冲刷时水深应1 m;同时,通过对不同排沙流量的对比,提出了当发生不同流量时采用不同的排沙手段,可以达到最优的排沙效果。该模型试验研究成果为今后水库综合运用排沙方案提供了新思路,也为类似工程的实施提供了技术参考。
[Abstract]:The sediment deposition of reservoirs in China is very serious. Many remarkable achievements have been made by water conservancy workers in the study of reservoir sediment discharge, but the research on small discharge sediment discharge is less. By using hydraulic moving bed model test and analyzing the effect of different flow diversion and sediment discharge, it is proved that the advantage of small flow diversion and sediment discharge scheme provides a new way for reservoir to discharge sediment when small discharge occurs. It also provides a new scheme for sediment removal from the reservoir. Based on the analysis of the sand discharge test whether there is a diversion wall, it is proved that the influence of water depth on sand removal in diversion and other discharge is proved, and it is proposed that the water depth should be 1 m when the best scour is applied, and at the same time, through the comparison of different sediment discharge, It is suggested that the optimal effect of sediment discharge can be achieved by adopting different means of sediment removal when different discharge occurs. The results of the model test and research provide a new idea for the future comprehensive utilization and sediment removal scheme of reservoirs, as well as a technical reference for the implementation of similar projects.
【作者单位】：河南省豫北水利勘测设计院;
【基金】：新疆维吾尔自治区水利水电工程重点学科资助项目(XJZDXK-2002-10-05)
【分类号】：TV145

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