本文選題：冰塞 + 彎槽��； 參考：《人民黃河》2017年11期

【摘要】：冰塞的出現(xiàn)造成河道上游水位壅高,常誘發(fā)凌洪災(zāi)害。天然河道并非理想直線而是蜿蜒曲折的,冰塞的堆積演變過程更為復(fù)雜,研究彎道冰塞水位變化規(guī)律對于北方河流的防凌工作具有重要意義。通過S形彎槽試驗(yàn),分析彎槽冰塞水位變化特點(diǎn)及規(guī)律,并與直槽和天然河道進(jìn)行對比。試驗(yàn)結(jié)果表明:冰塞水位壅高滯后于冰塞的增厚過程,且平衡冰塞水位增值隨冰塞厚度的增加而增加,平衡冰塞水位相對增值隨弗勞德數(shù)的增大而遞減,彎槽平衡冰塞水位相對增值與直槽相比增幅較小。
[Abstract]:The appearance of ice slug often causes flood disaster in the upper reaches of the river. The natural channel is not an ideal straight line but winding and winding, and the accumulation and evolution process of ice plug is more complicated. It is of great significance to study the variation law of water level of ice slug in curved channel for the anti-ice work of northern rivers. The characteristics and laws of water level change of ice slug in curved channel are analyzed through S-shaped bend channel test, and compared with straight channel and natural channel. The experimental results show that the thickening process of Yu Bing plug is delayed by the high water level of ice slug, and the increment of water level of equilibrium ice plug increases with the increase of the thickness of ice plug, and the relative increment of water level of equilibrium ice plug decreases with the increase of Froude number. The relative increment of the water level of the equilibrium ice plug in the curved channel is smaller than that of the straight trough.
【作者單位】： 合肥工業(yè)大學(xué)土木與水利工程學(xué)院;
【基金】：國家自然科學(xué)基金資助項(xiàng)目(51379054)
【分類號】：TV875

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相關(guān)碩士學(xué)位論文 前2條

1 尹運(yùn)基;彎道冰塞水位試驗(yàn)研究[D];合肥工業(yè)大學(xué);2005年

2 卜松;基于群智能算法的BP神經(jīng)網(wǎng)絡(luò)模型在冰塞水位及厚度預(yù)測中的應(yīng)用[D];合肥工業(yè)大學(xué);2009年

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本文編號：1780531