川江风簸碛滩碍航成因与整治效果分析  

Analysis of navigation-obstructing mechanism and regulation effect for the Fengboqi pebble shoal in the Yangtze River

作　　者：赵志舟[1] 黄超 佘俊华 

机构地区：[1]重庆交通大学河海学院,重庆400074 [2]长江重庆航运工程勘测设计院,重庆400011

出　　处：《水运工程》2008年第8期112-115,共4页Port & Waterway Engineering

基　　金：西部交通建设科技项目(200532800029)

摘　　要：长江上游风簸碛滩位于井口急弯的上游弯曲放宽河段,滩段枯期分汊,左槽窄弯,右槽顺直宽浅,是长江上游著名的卵石滩险。文章分析了滩段的碍航成因和整治前后的河床演变情况。1995年右槽方案实施后整治效果良好,但2001年右槽上浅区开始出浅,主要是因整治建筑物的水毁而导致右槽冲刷能力减弱所致。修复和加固原有整治建筑物、疏浚右槽进口浅区,可改善右槽通航条件。Fengboqi shoal is a typical pebble shoal of branching reach with bend in the upper course of the Yangtze River. The analysis of the navigation-obstructing mechanism and bed evolution before and after regulation revealed that the regulation effect after implementation of the right-channel scheme in 1995 was satisfactory. But since 2001, siltation occurred on the upper shallow reach of the right channel, which was induced by the weakening of scouting in the tight channel due to the damage of regulation structures. The navigation condition of the right channel could be improved by reinforcing the existed regulation structures and dredging the shallow area at the entrance of the right channel.

关 键 词：山区河流 卵石浅滩 航道整治 

分 类 号：U612.16[交通运输工程—船舶及航道工程]