| 摘要: |
| 针对西淝河闸站工程在闸、站单独运行时存在的回旋和斜流问题，采用整体正态模型对闸站工程进行水工模型试验研究。在抽排水工况下，设计了不同导流墩长度，不同导流墩开孔尺寸包括开孔宽度、开孔间距、开孔高度等7种导流墩整流方案；其中对仅25 m 长导流墩方案和导流墩最优开孔尺寸方案进行了自排工况下自排闸的过流流态及流速分布研究。通过对比各方案下导流墩侧回旋区面积大小及各孔流速均匀度，建议导流墩长25 m，开孔宽45 m，相邻的孔口间距625 m，开孔高度5 m。5#和6#流道中间加设1 m短隔墩的方案可减小泵站前池及闸前水流回旋区域，改善水流流态，提高各孔流速均匀度，为泵站机组及水闸运行提供良好的水力条件。试验研究结果可为闸站结合工程选择导流墩整流方案提供技术参考。 |
| 关键词: 西淝河闸站 导流墩开孔 整流 模型试验 |
| DOI： |
| 分类号:TV675 |
| 基金项目:国家自然科学基金青年科学基金项目（51409227）； 国家自然科学基金资助项目（51779215）； 江苏省博士后科研资助计划项目（1501115B）； 长江科学院开放研究基金资助项目（CKWV2016386/KY） |
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| Experimental research on opening diversion-piers at Xifeihe combined sluice pump station |
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XU Bo1, YAO Tianwen1, XIA Hui2, GAO Chen3
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1.School of Water Resources and Power Engineering, Yangzhou University, Yangzhou;2.Jiangsu Water Conservancy Survey and Design Institute Co., Ltd., Yangzhou;3.Jiangxi Provincial Design and Research Institute of Water Conservancy and Hydropower, Nanchang
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| Abstract: |
| In view of the problems of raceway and diagonal flow (whirling flow and skew flow) during the operation of the Xifeihe combined sluice-pump station alone, the hydraulic model tests on the combined sluice-pump junction are carried out by use of the integral normal model. Under the working conditions of drainage, seven kinds of rectification schemes of the diversion pier are designed, such as different lengths of the diversion pier, opening size of different diversion piers, spacing between openings and the height of openings. And only the 25 m long diversion pier scheme and the optimal opening size of the diversion piers are studied under the working conditions of self-drainage and velocity distribution. By comparing the size of the raceway area beside the diversion piers and the velocity uniformity of each opening, the model tests show that the length of the diversion pier is 25 m, the opening width is 4.5 m, the distance between the adjacent opening spacings is 6.25 m, and the opening height is 5 m. The scheme of adding a 1 m short diversion pier between the 5# and 6# channels can reduce the water swirling area in the forebay of the pumping station and the front of the sluice, so as to improve the flow pattern of the water flow, increase the velocity uniformity of each opening, and provide good hydraulic conditions for the operation of the combined sluice-pump station. The experimental research results can provide technical references for the selection of the rectification scheme of the diversion piers in combination of the sluice with the pumping stations. |
| Key words: Xifeihe sluice station diversion pier opening flow rectification model test |
