| 维持黄河下游主槽平滩流量4000m3／s所需水量 |
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| 引用本文： | 刘晓燕,申冠卿,李小平,张原锋.维持黄河下游主槽平滩流量4000m3／s所需水量[J].水利学报,2007,38(9):1140-1144. |
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| 作者姓名： | 刘晓燕 申冠卿 李小平 张原锋 |
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| 作者单位： | 1. 黄河水利委员会,河南,郑州,450003
2. 黄河水利科学研究院,河南,郑州,450003 |
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| 摘 要： | 基于黄河下游历史实测资料,分析了流量、水量、含沙量和来沙量等主要因素与主槽形态的响应关系,通过对未来入黄泥沙形势、黄河下游洪水形势、黄河下游不同量级洪水的挟沙能力、不同量级及历时的洪水塑槽机理分析,阐述了小浪底水库运用后进入黄河下游的泥沙将主要在洪水期下泄的特点,以及未来下游来沙量8亿~9亿t情况下,黄河下游主槽不萎缩所需洪水条件,即维持下游主槽过流能力4000m3/s左右,对应的塑槽水量应维持在60亿~70亿m3。
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| 关 键 词： | 主槽 平滩流量 输沙量 径流条件 |
| 文章编号： | 0559-9350（2007）09-1140-05 |
| 修稿时间： | 2006-12-25 |
Flood volume required for keeping the main channel from shrinkage in the lower Yellow River |
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| LIU Xiao yan.Flood volume required for keeping the main channel from shrinkage in the lower Yellow River[J].Journal of Hydraulic Engineering,2007,38(9):1140-1144. |
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| Authors: | LIU Xiao yan |
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| Affiliation: | Yellow River Conservancy Commission, Zhengzhou 450003, China |
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| Abstract: | Based on hydrological data of the lower Yellow River, the responses of flood volume, discharge, sediment concentration, runoff, etc. to the main-channel configuration of the lower Yellow River were investigated. By analyzing the main-channel configuration mechanism under various sediment loads, flood situations, sediment carrying capacities of floods in different magnitudes and durations after Xiaolangdi Reservoir put into operation, it has been shown that the sediment will be transported mainly during flood season, and the flood discharge keeping the main-channel from shrinkage will be around 4 000m^3/s. The corresponding flood volume is 6 billion - 7 billion m^3 under the sediment load of 0.8 billion - 0.9 billion ton per year. |
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| Keywords: | main-channel bankfull discharge sediment load flow regime |
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