【摘要】：通過分析黃河下游11場典型漫灘洪水的資料,探討了發(fā)生漫灘洪水時灘槽水沙的交換模式及淤灘刷槽的機(jī)理。結(jié)果表明:1花園口—利津河段灘地淤積量隨著花園口站來沙量的增大而增大,灘地淤積量越大,相應(yīng)河段主河槽的沖刷量越大;211場典型漫灘洪水過程中,除1953年第二次大洪水槽灘均發(fā)生淤積,1988年、1996年主河槽沖刷量占灘地淤積量的比例較低外,花園口—利津河段主河槽沖刷量基本上為灘地淤積量的65%~99%;3漫灘洪水全斷面沖淤量隨含沙量的變化趨勢與不漫灘洪水主槽沖淤量隨含沙量的變化趨勢基本一致。
[Abstract]:By analyzing the data of 11 typical floodplain floods in the lower reaches of the Yellow River, this paper discusses the exchange mode of water and sediment in the floodplain trough and the mechanism of the bank brushing trough when the flood occurs in the lower reaches of the Yellow River. The results show that: (1) the amount of beach siltation in Huayuankou-Lijin River section increases with the increase of sediment coming from Huayuankou Station, and the larger the amount of silt in the beach is, the greater the scour amount of the main channel in the corresponding reach is; In the process of 211 typical floodplain floods, except for the second major flood channel beach in 1953, the main channel scour accounted for a low proportion of beach deposition in 1988 and 1996. The scour of the main channel in the Huayuankou-Lijin reach is basically 65% 鈮，

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