汉江兴隆—蔡甸段2000吨级航道整治工程设计最低通航水位分析  

Lowest navigable water level in design of 2,000-ton level waterway regulation project for Xinglong to Caidian section of Han River

作　　者：张芹 张雯 郭敏 ZHANG Qin;ZHANG Wen;GUO Min(Hubei Provincial Communication Planning and Design Institute Co.,Ltd.,Wuhan 430051,China)

机构地区：[1]湖北省交通规划设计院股份有限公司,湖北武汉430051

出　　处：《水运工程》2024年第10期125-130,151,共7页Port & Waterway Engineering

摘　　要：随着兴隆枢纽蓄水运用后,枢纽下游河段的河床发生沿程冲刷,同流量下水位产生不同程度的下降。为确定汉江兴隆—蔡甸段2000吨级航道整治工程设计最低通航水位,采用综合历时曲线法计算航道设计通航流量,通过近期水位-流量关系、枯水期水面比降等确定航道设计最低通航水位。结合通航水位的变化趋势,提出后期根据冲淤变化调整后的地形、设计流量、水位-流量关系等对设计最低通航水位进行实时复核调整,以确保水位下降后设计水位的合理性。With the use of Xinglong Hub's water storage,the riverbed of the downstream section of the hub undergoes scouring along the waterway,and the water level decreases to varying degrees under the same discharge.To determine the lowest navigable water level designed for the 2,000-ton level waterway regulation project of the Xinglong to Caidian section of the Han River,the paper uses the comprehensive duration curve method to calculate the navigable discharge of the waterway design,determine the lowest navigable water level of the waterway design through the recent water level-discharge relationship and the water surface gradient during the dry season.Based on the trend of changes in the navigation water level,the paper proposes the terrain,design discharge,water level-discharge relationship adjusted according to erosion and sedimentation changes in the later stage to conduct real-time review and adjustment of the designed lowest navigation water level,ensuring the rationality of the design water level after the water level drops.

关 键 词：最低通航水位 水位-流量关系 综合历时曲线法 水位下降 

分 类 号：U617[交通运输工程—船舶及航道工程]