试验结果表明，在深水区的单侧丁坝群对宽浅河床地形的调整作用大于浅水区；
Test results show that spur dikes aligned along a single bank in the deep water zone have more effects on the adjustment of the bed topography of the wide-shallow river than in the shallow water zone;
结合试验资料，应用因次分析方法及动量方程，导得了对不同间距的淹没丁坝群的壅水计算式。
By using above formulae the backwater for equal - interval and unequal - interval submerged dikes can be obtain.
本文介绍了用颜料示踪和最新的油膜技术对流动进行可视化记录以研究淹没丁坝群的近体流场分布的试验结果。
The dye injection and oil-film method together with electromagnetic velocimeter are applied to measure the flow field around spur dikes.
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