长江中游牯牛沙水道航道整治一期工程效果分析  

Effect analysis of Guniusha waterway first phase channel regulation project in the middle reach of the Yangtze River

作　　者：蔡大富 邹祝 闫军 黄蓓蓓 王领元 项欢庆 

机构地区：[1]长江航道规划设计研究院,湖北武汉430011

出　　处：《水运工程》2011年第3期97-102,共6页Port & Waterway Engineering

摘　　要：牯牛沙水道为长江中游近期出现的重点碍航浅水道,整治好该水道对长江中游航道的畅通具有重要意义。交通运输部于2010年2月批复同意实施该水道航道整治一期工程。简介牯牛沙水道演变特点、主要影响因素、碍航特性与整治方案,详细分析牯牛沙水道整治前后过渡段变化情况、牯牛沙边滩淤积情况以及航道改善情况,重点分析一期工程整治效果,预测演变趋势,提出后续工程建议。一期工程实施后,工程效果良好,总体河势更趋稳定,牯牛沙边滩淤高展宽,利于枯水期水流集中,过渡段浅埂得到较为有效冲刷,淤积减少,碍航程度减轻,浅区航道条件改善,为后续工程的实施创造了有利条件。分析认为:一期工程效果将会随着建筑物功能的继续发挥进一步显现,达到预期目标。Guniusha waterway is a key navigation-obstructing shallow section emerging in the middle reach of the Yangtze River in recent years,and it is of great importance to regulate this part of waterway for the smooth navigation in the middle reach of the Yangtze River.The implementation of the first phase channel regulation project of Guniusha waterway was approved by the Ministry of Transport in Feb.of 2010.The evolutional features,main influencing factors,the navigation-obstructing characteristics and regulation plans of Guniusha waterway are introduced： The variations of crossing,the deposition of Guniusha point bar and the improvement of channel,particularly the effects of the first phase project are analyzed;The evolution trend of this waterway is predicted,and the proposals on the follow-up works are put forward.After the realization of the first phase project,the situation of the river course becomes more stable,the deposit occurs at the Guniusha point bar,and the bar widens,thus the flow concentrates easily in low water,the shallow ridge at the crossing is scoured efficiently,the amount of accumulation is reduced,the degree of navigation-obstructing is relieved,and the channel conditions in the shallow area are improved,which create favorable conditions for the follow-up works.It is thought that the effect of the first phase channel regulation project will become more obvious along with the realization of the structures＇ functions and the expected goal will be reached.

关 键 词：牯牛沙水道 航道整治 效果分析 

分 类 号：U617[交通运输工程—船舶及航道工程]