构皮滩通航设施第一级中间渠道水力学观测与实船试验  

Hydraulics observation and ship test of first-step intermediate channel of Goupitan navigation structure

作　　者：王新[1] 黄金根 左邦祥 陈小虎 WANG Xin;HUANG Jingen;ZUO Bangxiang;CHEN Xiaohu(Key Laboratory of Navigation Structures,Nanjing Hydraulic Research Institute,Nanjing 210029,China;Hangzhou State Power Machinery Research&Design Institute Co.,Ltd.,Hangzhou 310030,China;Guizhou Wujiang Hydropower Development Co.,Ltd.,Guiyang 550002,China;Changjiang Survey,Planning,Design and Research Co.,Ltd.,Wuhan 430010,China)

机构地区：[1]南京水利科学研究院,通航建筑物建设技术交通行业重点实验室,江苏南京210029 [2]杭州国电机械设计研究院有限公司,浙江杭州310030 [3]贵州乌江水电开发有限责任公司,贵州贵阳550002 [4]长江勘测规划设计研究有限公司,湖北武汉430010

出　　处：《水运工程》2023年第9期72-77,共6页Port & Waterway Engineering

摘　　要：依托乌江构皮滩通航工程,开展了含长距离通航隧洞中间渠道的水力学观测与实船试验,揭示了中间渠道波动传播时空变化规律及船舶航行特性。观测表明:中间渠道波动传播速度约5.0~6.8 m/s,波幅与水面宽度呈反比,中间渠道两端的水面波动最大,通航隧洞内次之,大型渡槽交汇区波动最小;在中间渠道船厢卧倒门启闭产生的波幅在2 cm内,船舶正常航行产生的最大波幅约10 cm以内,主要波动周期为120~160 s,水面波动对船舶航行富余水深影响不大;船舶在中间渠道正常航行速度达到了设计指标,最大下沉量发生于船舶出厢连续加速阶段,实测上行和下行最大下沉量分别约25和13 cm,船舶在中间渠道内航行下沉量约10 cm以内,富余水深较大,通航隧洞断面设计总体合理。Relying on the navigation project of Wujiang River,the hydraulics observation and ship test of the intermediate channel containing the long-distance navigation tunnel are carried out.Wave regulation of time and space of intermediate channel and ship navigation characteristics are revealed.The observation presents the intermediate channel wave propagation speed is about 5.0~6.8 m s.The wave amplitude is inversely proportional to the water width.The water surface at the two ends of the intermediate channel fluctuates the most,second in the navigation tunnel,and the large aqueduct intersection area fluctuates the least.The amplitude of the wave generated in the intermediate channel by the open and close of the chamber gate is within 2 cm,while that caused by ship navigation is basically within 10 cm.The main wave period is between 120 and 160 s.The water surface fluctuation has little impact on the underkeel clearance of the ship navigation.The normal navigation speed of the ship in the intermediate channel reaches the design index,and the maximum sinkage occurs in the continuous acceleration stage of the ship out of the chamber.The measured maximum sinkage of the upward and down is about 25 and 13 cm respectively.The maximum navigation sinkage of the ship in the intermediate channel is basically within 10 cm.The underkeel clearance is rich and the design of the navigable tunnel section is generally reasonable.

关 键 词：构皮滩水电站 中间渠道 通航隧洞 大型渡槽 实船试验 

分 类 号：U65[交通运输工程—港口、海岸及近海工程]