丁坝布设对弯道水沙运动的影响 - 水利科技资讯 - 水资讯网 关键词: 丁坝; 弯道; 水沙运动 [gap=588]Key words: spur dike; bend; water-sediment movement
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bend-ended spur dike 勾头丁坝
pear-ended spur dike 梨形丁坝
submerged spur dike 淹没丁坝
rockfill spur dike 堆石丁坝
open spur-dike 开口丁坝
ended spur dike 勾头丁坝
spur-dike 丁坝
Several basic characteristics on pressure head distribution at the surface of spur dike are described.
论述了坝体周围动水压力分布的若干基本材性。
Local directional change of the flow field in the vicinity of spur dike would result in local scouring of spur dike.
丁坝(群)附近的局部流场变化是引起丁坝局部冲刷的根本原因。
Three kinds of permeable pile dikes with different seepage rate are tested, and effect of flow control is basically the same with the spur dike.
试验的三种透水率桩坝，其导流效果与实体丁坝群的基本相同，并未因部分透水及形态不同而使其控导作用明显减弱。
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