主槽河槽议  

Comments on the Main Yellow River Channel

作　　者：胡一三[1] 李勇[2] 张晓华[2] 

机构地区：[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

出　　处：《人民黄河》2010年第8期1-2,共2页Yellow River

摘　　要：以河道演变最为剧烈的黄河下游为例,分析了河槽、主槽、滩地的涵义及相互联系。平原河道横断面为复式断面,一般可分为枯水槽、一级滩地、二级滩地、三级滩地几部分;主槽是一次大洪水主流所通过的河床部分,包括枯水槽和嫩滩,是水沙的主要通道;河槽是指洪水期流速较大和在一个较长的时期内主槽变化所涵盖的部分,包括主槽、二滩或部分二滩,是较大洪水所通过的河床部分;嫩滩是主槽的组成部分;河槽和滩地可互相转换。The paper analyzes the meanings of river channel,main channel and floodplain and their interrelationships by taking the lower Yellow River where the channel evolution is the most severe as an example.The cross-section of alluvial channel is compound one,usually can be divided into several parts of low water channel,class one,class two and class three floodplains.The main channel is the riverbed part where for passing one event of a major flood,including low water channel and newly formed floodplain where is the main passageway for water and sediment.The river channel covers the parts of the area of main channel variation in a long period of time,the main channel,secondary floodplain or parts of secondary floodplain where are the river bed part for passing through greater floods with faster velocity during flood season.The newly formed floodplain is the part of main channel.The river channel and floodplain can be mutually changed.

关 键 词：滩槽转换 主槽 河槽 滩地 复式河槽 黄河 

分 类 号：TV85[水利工程—水利水电工程] TV882.1