长江九江河段河床演变与崩岸问题研究  

Analysis on Bank Failure and River Channel Changes

作　　者：徐永年[1] 梁志勇[1] 王向东[1] 李文武[1] 杜英奇[1] 

机构地区：[1]中国水利水电科学研究院,北京100044

出　　处：《泥沙研究》2001年第4期41-46,共6页Journal of Sediment Research

摘　　要：河岸由于水流的侵蚀可引起崩岸 ,而防止崩岸的主要方法是护坡。崩岸的治理应该首先明确侵蚀的部位和机制。本文从机理上对崩岸进行了分析 ,把崩岸分为四种形式 :窝崩、溜崩、条崩和洗崩。对九江江新洲河段河床演变与发展趋势进行了分析 ,并认为江新洲洲头左缘等处受水流顶冲 ,岸线崩塌。建议尽快对河段冲刷较大的部位。Bank is often scoured by river flows and protection has to be made. Locations and mechanism of bank erosion should be better understood in order to protect bank failure thoroughly. This paper made a general description for bank failure in alluvial streams, and classified the bank failure into four types as shown in Fig.1 to 4. Thus in this paper presented an example analysis for Jiujiang reach located in the lower part of the Changjiang River, and pointed out that some places of the left bank of the central bar is suffered erosin or will be under erosion within a near future, and suggested that such places of unstable bank should be protected as soon as possible.

关 键 词：九江河段 河床演变 崩岸 窝崩 溜崩 条崩 洗崩 

分 类 号：TV147[水利工程—水力学及河流动力学] P642.21[天文地球—工程地质学]