向家坝水利枢纽近坝段通航水域近年冲淤特性分析  

Erosion and deposition characteristics of navigable waters near Xiangjiaba Hydro-project in recent years

作　　者：董宇 孙振勇 秦蕾蕾 马耀昌 DONG Yu;SUN Zhenyong;QIN Leilei;MA Yaochang(Upper Changjiang River Bureau of Hydrological and Water Resources Survey,Changjiang Water Resources Commission,Chongqing 400021,China;China Three Gorges Construction Engineering Corporation,Chengdu 610041,China)

机构地区：[1]长江水利委员会长江上游水文水资源勘测局,重庆400021 [2]中国三峡建工(集团)有限公司,四川成都610041

出　　处：《水运工程》2023年第8期85-89,175,共6页Port & Waterway Engineering

基　　金：中国三峡建工(集团)有限公司项目(JGAJ0421004)。

摘　　要：针对向家坝枢纽日益增加的通航需求,为保障向家坝枢纽正常运行,2019—2021年对向家坝近坝通航水域持续性水沙监测,采用3年的实测地形资料,结合向家坝库区水沙特性对重点水域冲淤变化进行分析。结果表明:坝上游翻坝码头逐年淤积,但淤积量不大;凉水井码头逐年冲刷,冲刷区域主要位于深槽;坝下游航道冲刷较为明显。须持续对加强翻坝码头和坝下通航水域监测和分析,以保障涉水建筑物稳定、船只通航安全。Aiming at the increasing navigation demand of the Xiangjiaba Hydro-project,to ensure the normal operation of the Xiangjiaba Hydro-project,we carry out continuous water and sediment monitoring in the navigable waters near Xiangjiaba from 2019 to 2021.Based on the 3-year measured topographic data and the characteristics of water and sediment in the Xiangjiaba reservoir area,we analyze the erosion and deposition changes in the navigable waters near Xiangjiaba.The results show that the Fanba wharf at the upstream of the dam is silted up,whereas the amount of siltation is not large.The Liangshuijing wharf is eroded year by year,and the erosion area is mainly located in the deep groove.The erosion in the downstream waterway of the dam is obvious.The monitoring and analysis of the port wharf and the navigable waters below the dam should be continuously strengthened to ensure the stability of wading structures and the navigation safety of vessels.

关 键 词：向家坝水利枢纽 通航水域 冲淤量 水沙特性 

分 类 号：U612[交通运输工程—船舶及航道工程]