构皮滩通航建筑物中间渠道船舶航行特性试验研究  

Navigation characteristics of ships in middle channel of Goupitan navigation buildings

作　　者：王小威 李中华[2] 李昌钊 宋金育 马要坡 WANG Xiaowei;LI Zhonghua;LI Changzhao;SONG Jinyu;MA Yaopo(Changjiang Survey,Planning,Design and Research Co.,Ltd.,Wuhan 430010,China;Nanjing Hydaulic Research Institute,Nanjing 210029,China;Guizhou Wujiang Hydropower Development Co.,Ltd.,Zunyi 564400,China)

机构地区：[1]长江勘测规划设计研究有限责任公司,湖北武汉430010 [2]南京水利科学研究院,江苏南京210029 [3]贵州乌江水电开发有限责任公司,贵州遵义564400

出　　处：《水运工程》2023年第7期125-132,共8页Port & Waterway Engineering

摘　　要：中间渠道船舶航行特性与通航建筑物通航效率和船舶航行安全息息相关。利用牵引船模缩尺试验,研究构皮滩水电站通航建筑物中间渠道内船舶上下行过程中的航行特性,分析了不同航速下船舶的升沉特性,基于试验结果拟合了船舶在中间渠道内最大下沉量与航速、渠道水下面积、船舶舯断面水面以下部分面积以及初始水深的关系,建立了可准确预测船舶最大下沉量的无量纲公式。研究结果表明:1)相同航速下,船舶出船厢下沉量远大于进厢,船舶出厢过程是船舶下沉量的控制工况;2)中间渠道断面系数小于3.0时,断面系数变化对船舶下沉量影响较为明显,且断面系数越小对船舶下沉量影响越显著;中间渠道断面系数大于4.0后,断面系数增大对船舶下沉量的影响迅速减小。The navigation characteristics of ships in intermediate channels are closely related to the navigation efficiency of navigable buildings and the safety of ship navigation.A scale test of tugboat model is used to study the navigation characteristics of the ship in the middle channel of the navigable building of the Goupitan Hydropower Station,and the sinking amount characteristics of the ship under different sailing speeds are analyzed.The relationship between the maximum sinking amount of the ship in the intermediate channel and the sailing speed,underwater area of channel,area below the water surface of midship section of ship and initial water depth is established,and a dimensionless formula that can accurately predict the maximum sinking amount of the ship is established.The research results show that:1)Under the same speed,the sinking amount of the ship out of the cabin is much larger than that of the entering cabin,and the ship s exit process is the control condition of the ship s sinking amount.2)When the section coefficient of the intermediate channel is less than 3.0,the change in section coefficient has a more significant impact on the sinking amount of ships,and the smaller the section coefficient,the more significant the impact on the sinking volume of ships;when the section coefficient of the intermediate channel is greater than 4.0,the influence of the increase of the section coefficient on the sinking volume of the ship decreases rapidly.

关 键 词：通航建筑物 中间渠道 船舶 下沉量 航行安全 

分 类 号：U643[交通运输工程—船舶及航道工程]