摘要
为了解决软土、高回淤等特殊水域环境下沉管隧道的施工难题,以鱼珠隧道工程为依托,通过有限元模型分析了岸上明挖基坑围护结构的变形规律,明确岸上隧道段基坑结构的稳定性,探讨了跨江沉管隧道施工中沉管基槽开挖、沉管管节安装、沉管管节水下接头安装、基础施工、回填土覆盖等关键施工技术。
To solve the construction problems of immersed tube tunnels in special water environments(soft soil and high siltation),it takes the Yuzhu Tunnel project as an example.Through finite element modeling,the deformation characteristics of the retaining structure for onshore open-cut foundation pits were analyzed,and the stability of the foundation pit structure in the onshore tunnel section was verified.Further,key construction technologies were discussed,including immersed tube trench excavation,immersed tube segment installation,underwater joint construction of immersed tube segments,foundation construction,and backfilling and covering during the construction of immersed tube tunnels.
作者
靳航
JIN Hang(No.5 Engineering Co.,Ltd.,China Railway 18th Bureau Group,Tianjin 300459,China)
出处
《黄河水利职业技术大学学报》
2026年第1期40-49,共10页
Journal of Yellow River Conservancy Technical University
关键词
跨江沉管隧道
有限元模型
基槽开挖
砂流法
回填覆盖技术
沉管管节安装
管节水下接头安装
Cross-river immersed tube tunnel
finite element simulation
trench excavation
sand flow method
backfilling and covering technology
immersed tube segment installation
underwater joint installation of segments
