Combining with the subsea tunnel design and construction actual situation in Xiamen Xiang＇ an, this paper made detailed analysis and introduction to some key technical problems and their treatment measures encountered in the process of tunnel construction, had certain referenced effect to domestic current under and to be built several undersea tunnel design and construction.%结合厦门翔安海底隧道设计与施工实际状况，对该隧道建设过程中遇到的几个关键技术问题及其处理措施进行详细的分析与介绍，对国内当前在建和待建的几座海底隧道设计与施工有一定的参考作用。
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