黄河首次调水调沙期间下游洪水特性分析  

Analysis of flood characteristics during the first experiment for water and sediment regulation in the lower Yellow river

作　　者：许珂艳[1] 刘晓伟[1] 李世明[1] 

机构地区：[1]黄河水利委员会水文局,河南郑州450004

出　　处：《西北水资源与水工程》2003年第4期8-12,共5页Northwest Water Resources & Water Engineering

基　　金：国家重大基础性研究项目(19990436-01)资助

摘　　要：2002年7月黄河进行了首次调水调沙试验,该次调水调沙的"人造洪水"在向下游演进过程中,出现了"小流量、高水位、大漫滩、水流演进缓慢、洪水坦化变形严重"等异常现象,本文通过分析认为河道萎缩、行洪能力减少是造成这些现象的主要原因。The first experiment for water and sediment regulation in lower Yellow river is performed in July 2002. When the artificial flood routes downstream during the experiment, it has a characteristic of 'low discharge, high water level, severe overflowing, slow flood speed and severe deformation of flood wave'. It can be concluded from the analysis of the experiment that the channel shrinkage and the reduction of discharge capacity are the main reason for the unconventional phenomenon.

关 键 词：黄河 冲刷 河道萎缩 调水调沙 行洪能力 

分 类 号：TV122.5[水利工程—水文学及水资源]