摘要
荆江位于长江中游的上段,因其流经荆州而得名。新中国成立后,护岸工程的实施,增强了荆江河岸抗冲能力,抑制了近岸河床的横向发展,但局部河势出现了一定程度的调整,有的河段河势变化剧烈,荆江河道崩岸仍然十分频繁。本文分析总结了荆江近期河道演变的特点;分析研究了河道演变过程中主流线的变化、河道冲刷对崩岸模式的影响。从而得出:主流线的变化、河道的冲刷变化可能诱发崩岸产生,崩岸如果得不到有效控制将会影响河势的发展。
The Jingjiang reach is located in the middle the Yangtze River. After the foundation of new China, with the continuous bank protection construction, the anti-scouring ability of riverbank has been strengthened, and then the lateral bed deformation has been controlled. However, channel regime has changed to a certain degree in some localities of the reach and there were great variations of lateral profiles at some sections, with frequent bank caving. This paper summarized the characteristics of recent fluvial process in the Jingjiang Reach, analyzed the relationship between fluvial process and bank caving with the observed data. The results show that the mainstream line changes and river channel erosion may induce bank caving, at the same time the lack of effective control of bank caving will affect the development of fiver regime.
出处
《水文》
CSCD
北大核心
2010年第6期29-31,36,共4页
Journal of China Hydrology
基金
国家自然科学基金(51079103)
关键词
长江
荆江
河道演变
崩岸
关系
Yangtze River
Jingjiang River
fluvial process
bank caving
relationship
