本文選題：多來多排 + 高含沙洪水�。� 參考：《人民黃河》2016年04期

【摘要】：來沙量大、水沙搭配不合理以及游蕩型河道斷面寬淺是黃河下游寬河道淤積嚴重的主要原因。小浪底水庫的建成和運用使得改變進入下游河道的水沙搭配成為現(xiàn)實。在列舉已有關于窄深河槽"多來多排"的研究成果和實例的基礎上,分析了形成"多來多排"現(xiàn)象的原因,認為高含沙洪水的輸沙量并不是含沙量越高就越大,而是存在一個閾值,達到這一閾值即可實現(xiàn)"多來多排"�；诶蛩恼举Y料,結合曼寧公式,得到了黃河下游寬河道平衡河寬的計算公式,得出黃河下游寬河道的平衡河寬為574 m,該計算結果與渭河、北洛河及黃河山東段河道實測資料相比是合理的。
[Abstract]:Large amount of sediment, unreasonable combination of water and sediment, and wide and shallow section of wandering channel are the main reasons for the serious deposition of the wide channel in the lower Yellow River. The construction and application of Xiaolangdi Reservoir make it possible to change the combination of water and sediment into the downstream channel. On the basis of enumerating the existing research results and examples of "more come and more discharge" in narrow and deep channel, this paper analyzes the causes of the phenomenon of "more come and more discharge", and considers that the sediment discharge of high sediment bearing flood is not the higher the sediment content is, the greater the sediment content is. But there is a threshold to achieve this threshold to achieve "multiple rows." Based on the data of Lijin hydrologic station and Manning formula, the calculation formula of the balance river width of the wide channel in the lower reaches of the Yellow River is obtained, and the balance river width of the wide channel in the lower reaches of the Yellow River is 574 m, which is similar to that of the Weihe River. It is reasonable to compare the measured data of the North Luohe River and the Shandong reach of the Yellow River.
【作者單位】： 黃河水利科學研究院;河南黃河河務局;
【基金】：中央級公益性科研院所基本科研業(yè)務費專項(HKY-JBYW-2014-15,HKY-JBYW-2014-20) 水利部公益性行業(yè)科研專項(201401002)
【分類號】：TV147

【相似文獻】

相關期刊論文 前3條

1 霍華德H.張;盧廬;;礫質(zhì)河道的幾何形狀[J];廣西水利水電科技;1983年03期

2 曹叔尤;劉興年;黃爾;楊克君;楊奉廣;;汶川地震災區(qū)河道修復重建研究綜述[J];四川大學學報(工程科學版);2010年05期

3 ;[J];;年期

相關碩士學位論文 前1條

1 劉亞博;壩下長河段河道縱橫剖面分形與通航水力要素響應研究[D];重慶交通大學;2015年

，

本文編號：1815705