黄河下游“驼峰”河段的形成和发展  

Formation and development of hump reach in Lower Yellow River

作　　者：郭庆超[1] 黄烈敏[1] 陈建国[1] 邓安军[1] 

机构地区：[1]中国水利水电科学研究院流域水循环模拟与调控国家重点实验室,北京100048

出　　处：《泥沙研究》2012年第5期38-42,共5页Journal of Sediment Research

基　　金：水利部公益性行业专项(200901014)

摘　　要：黄河下游河道平滩流量在1994-2002年发展为最为明显的"驼峰"现象,此后"驼峰"现象逐渐减弱,"驼峰"的"顶峰"位置主要发生在高村-孙口河段。在此基础上对"驼峰"河段的演变特点进行了分析,认为"驼峰"河段的形成是河道冲淤变化的反映,1994年10月-1999年10月,黄河下游河道淤积量也呈现出夹河滩-孙口河段淤积较多,而夹河滩以上河段及孙口以下河段淤积较少,并且"驼峰"河段具有易淤难冲的特点。文中还指出"驼峰"的形成和发展主要是由于水沙条件的变化,并给出了形成和改善"驼峰"河段的水沙条件。The hump phenomenon in the Lower Yellow River was very serious in 1994 to 2002 and gradually weakened from then on. The peak of the hump mainly occurs in the Gaocun- Sunkou reach. By analysis of the evolution characteristics of the hump reach, it is found that the formation of the hump reach reflects the chan- ges in river erosion and deposition. In 1994 to 1999, there was more sedimentation in the Jiahetan - Sunkou reach than that of the upstream and the downstream reaches. In addition, silting is easy and erosion is difficult in the hump reach. It is found that the formation and development of the hump reach are mainly due to the changes of water-sediment condition. Consequently, the characteristic relationship of flow and sediment trans- port, which influences the hump reach, is proposed.

关 键 词：黄河下游 驼峰河段 平滩流量 水沙条件 

分 类 号：TV147[水利工程—水力学及河流动力学]