摘要
长江上游铜鼓滩为弯曲放宽河段卵石浅险滩,是叙渝段枯期重点维护滩险。通过实测资料分析和模型实验研究,分析滩段的水沙运动和河床演变规律,揭示河道碍航成因。研究表明弯曲汊道航槽弯浅,航行条件难以彻底改善;采取直槽基建性疏浚与筑坝相结合整治方法,可基本实现整治目的。
TongGuTan shoal is typical pebble shoals of branching reach with bend in the upper course of the Yangtze River. Based on physical model tests, features of flow and sediment movement, and navigation-obstruction mechanism are analyzed. The research result reveals that it is difficult to improve basically the poor navigation condition in Curved branch channel. In order to achieve the objective of regulation engineering, a method that combines excavation of straight channel and building of dikes are suggested.
出处
《水运工程》
北大核心
2008年第4期72-75,共4页
Port & Waterway Engineering
基金
西部交通建设科技项目(200532800029)
关键词
弯曲放宽河段
卵石浅滩
航道整治
branching reach with bend
pebble shoals
waterway regulation
