It is very important to Immersed tube tunnel socket joint for the whole immersed tube tunnel. Therefore,this paper presents an example of immersed tube tunnel of the Hong Kong,zhuhai and macau bridge,using finite element analysis software to carry out the actual union joint mechanical model, considering the action of the steel and concrete at the same time,the existing hong kong-zhuhai-macao bridge between the immersed tube tunnel adjacent pipe successively head of research and analyze the shear key,and useful conclusions.%沉管隧道管节接头对整个沉管隧道至关重要，因此，本文结合港珠澳大桥沉管隧道实例，采用有限元分析软件开展了符合实际的管节接头受力模型，对管节接头的钢筋和混凝土同时受力作用进行考虑，对现有港珠澳大桥沉管隧道相邻管节节头之间的剪力键进行受力分析研究，并得出有益的结论。
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