泥沙研究Issue(1)：1-6,6.
长江中游嘉鱼-燕子窝河段演变机理及发展趋势研究
Analysis of evolution mechanism and tendency of Jiayu-Yanziwo section in middle Yangtze River
摘要
Abstract
Braided channels exist widely in the middle and lower reaches of the Yangtze River, a great part of these channels are in bad navigation conditions because of the shoals at the entrance of the branches. After the impoundment of the Three Gorges Project, the variations of runoff and sediment load induce the transformation of the downstream shoals, which worsen the navigation condition of some channels. Based on the. existing summary of the characteristics of the Jiayu-Yanziwo section, the relationship between river boundary and hydraulic sediment conditions is analyzed, and the mechanism of fluvial processes is revealed. The river evolution tendency and the optimization of the waterway projects are then presented.关键词
分汊河段/临界流量/趋势预测/航道整治Key words
braided river/ critical discharge/ trend prediction/ waterway regulation分类
建筑与水利引用本文复制引用
王业祥,李义天,朱玲玲..长江中游嘉鱼-燕子窝河段演变机理及发展趋势研究[J].泥沙研究,2012,(1):1-6,6.基金项目
国家重点基础研究发展计划(973)重大水利工程影响下河口水沙和地貌变化过程(2010CB429002) （973）
