黄河口河道萎缩对防洪安全的影响评价  

Atrophy of Channels and Its Effect on Controlling of Flood in the Yellow River Estuary

作　　者：郭慧敏[1] 张治昊[2] 刘春晶[2] 杨晓阳[1] 聂莉莉[1] 

机构地区：[1]黄河河口管理局,山东东营257091 [2]中国水利水电科学研究院,北京100044

出　　处：《水利科技与经济》2008年第12期961-962,共2页Water Conservancy Science and Technology and Economy

基　　金：国家自然科学基金项目(50609032);水利部科技创新项目(SCX2007-02)

摘　　要：采用实测资料分析和理论探讨的方法,研究了黄河口河道的萎缩过程及其对防洪安全的影响。研究结果表明:1986年后,黄河口河道的冲淤过程、纵比降、横断面形态都经历了一个重新调整的过程,表现出新的演变特征;黄河口河道萎缩恶化了河势,抬高了洪水水位,坦化了洪水过程,延长了洪水传播时间,对防洪安全极其不利。Using the methods of data analyses and theoretical study, the process of atrophy of channels is searched in the Yellow River Estuary, the result show that, the degradation and aggradation, longitudinal profile, cross section of channels experienced readjusting processes, the new evolution characteristic are put up after 1986; owing to the atrophy of channels, the water level of flood elevate, the flood become smooth, the flood transmitting time increase, its effect on controlling flood is very disadvantage.

关 键 词：河道萎缩 河床演变 防洪安全 黄河口 

分 类 号：TV85[水利工程—水利水电工程]