中国农村水利水电
中國農村水利水電
중국농촌수이수전
CHINA RURAL WATER AND HYDROPOWER
2015年
4期
113-115,119
,共4页
黄河%洪峰增值%异重流%基流%含沙量
黃河%洪峰增值%異重流%基流%含沙量
황하%홍봉증치%이중류%기류%함사량
Yellow River%flood peak increase%density flow%base flow%sediment concentration
结合历年黄河下游小浪底、花园口站水沙过程实测资料，重点分析了历史上“04．8”、“05．7”、“06．8”、“07．7”、“08．7”、“10．7”几场洪峰增值典型洪水的演进特征，总结了小浪底水库异重流排沙期高含沙洪水在黄河下游演进过程出现洪峰增值的内在特性。结果表明，减小异重流排沙前期基流条件和减缓出库含沙量的变化梯度，黄河下游河道的洪峰增值量将会得到明显减小。黄河下游洪峰增值最大增值发生在花园口站附近或其上游河段，花园口以下未再发生洪峰增值现象。
結閤歷年黃河下遊小浪底、花園口站水沙過程實測資料，重點分析瞭歷史上“04．8”、“05．7”、“06．8”、“07．7”、“08．7”、“10．7”幾場洪峰增值典型洪水的縯進特徵，總結瞭小浪底水庫異重流排沙期高含沙洪水在黃河下遊縯進過程齣現洪峰增值的內在特性。結果錶明，減小異重流排沙前期基流條件和減緩齣庫含沙量的變化梯度，黃河下遊河道的洪峰增值量將會得到明顯減小。黃河下遊洪峰增值最大增值髮生在花園口站附近或其上遊河段，花園口以下未再髮生洪峰增值現象。
결합력년황하하유소랑저、화완구참수사과정실측자료，중점분석료역사상“04．8”、“05．7”、“06．8”、“07．7”、“08．7”、“10．7”궤장홍봉증치전형홍수적연진특정，총결료소랑저수고이중류배사기고함사홍수재황하하유연진과정출현홍봉증치적내재특성。결과표명，감소이중류배사전기기류조건화감완출고함사량적변화제도，황하하유하도적홍봉증치량장회득도명현감소。황하하유홍봉증치최대증치발생재화완구참부근혹기상유하단，화완구이하미재발생홍봉증치현상。
Combining the measured data of water and sediment processes of past years in the lower Yellow River of Xiaolangdi and Huayuankou Station ,we focus on the analysis of several different levels of typically flood peak value of the evolution of features ,e . g .flood of “04 .8” ,“05 .7” ,“06 .8” ,“07 .7” ,“08 .7”and“10 .7” .The Xiaolangdi Reservoir sediment density flow of hyperconcen‐trated Yellow River flood in the evolution of the inherent characteristics of the peak value is summarized .The inherent characteristics of hyperconcentrated flood are summarized when the peak value occurs in the period of evolution .The results show that reducing the base flow conditions of preliminary density flow and mitigation of sediment concentration gradient ,the peak value of the Yellow Riv‐er will be significantly decline .Yellow River flood peak value or the maximum value occurs in the upper reaches of the Huayuankou Station ,the phenomenon of peak value has not happened again in the lower reach of Huayuankou Station .
