三峡船闸上游待闸锚地抵坡丁靠锚位结构设计方案  

Design scheme of T-shaped berthing to reach slope anchorage berth structure for upstream anchorage area of Three Gorges Ship Lock

作　　者：孙辉 方庆媛 易琛 赵振 SUN Hui;FANG Qingyuan;YI Chen;ZHAO Zhen(Three Gorges Navigation Authority,Yichang 443000,China;Shipping Development Research Center of Yangtze River,Wuhan 430014,China)

机构地区：[1]长江三峡通航管理局,湖北宜昌443000 [2]长江航运发展研究中心,湖北武汉430014

出　　处：《水运工程》2024年第10期131-136,共6页Port & Waterway Engineering

摘　　要：针对传统抵坡丁靠锚位结构受三峡库区水位周期变化影响,出现周边土体淘刷流失导致结构设计受力条件严重恶化,暴露出的高强度混凝土结构易导致船舶底部损坏等问题,依托实际工程,按三峡坝区50 a一遇水流流速1.0 m∕s、风速22.0 m∕s环境条件,以靠泊5000吨级干散货船为代表船型,进行适用于坝区待闸锚地大型船舶抵坡丁靠锚位结构设计研究,重点对抵坡丁靠锚位尺度、船舶停泊方式、系缆力计算、护坡结构、施工工艺等进行系统论述。采用系缆桩两侧设置防护带,并将系缆设施布置为内嵌结构形式,系船柱顶部不超出坡面的设计方法。结果表明:该抵坡丁靠锚位结构形式既能满足锚泊结构稳定的要求,又能有效防止结构周围水土流失,可在水位落差大、水流流速小的库区船舶锚泊设施建设工程中进行复制推广。According to the periodic changes of water level in the Three Gorges Reservoir area,the traditional slope-buttress anchorage structure is affected by the surrounding soil erosion,which leads to the serious deterioration of the structural design stress conditions,and the exposed high strength concrete structure is easy to cause the damage of the bottom of the ship.This article is based on the actual project and takes the 5,000-ton dry bulk cargo ship as the representative ship type under the environmental conditions of the water flow velocity of 1.0 m s and the wind velocity of 22.0 m s once every 50 years in the Three Gorges Dam area.The design of the slope-buttress anchorage structure for large ships in the dam area is studied.The slope-buttress anchorage scale,ship berthing mode,mooring force calculation,slope protection structure,construction technology and other aspects are systematically discussed.The design method of setting protective belt on both sides of mooring pile,arranging mooring facilities as embedded structure,and the top of mooring pillar not exceeding the slope surface is adopted.The results show that the structure of anchorage position against slope can not only meet the requirements of anchorage structure stability,but also effectively prevent water loss and soil erosion around the structure.It can be replicated and promoted in the construction project of ship mooring facilities in the reservoir area with large water level drop and small water flow velocity.

关 键 词：三峡坝区 大型船舶 抵坡丁靠 

分 类 号：U651[交通运输工程—港口、海岸及近海工程]