Abstract:Pudong Airport Station in the contact line of Shanghai Airport is located between Terminal T1 and T2 of Pudong Airport, and located directly below the trunk road - Yingbin Avenue of the airport. The project is at the core area of the airport traffic junction, where the surrounding environmental protection requirements are high, the pipeline is complex, and the airport will not be closed during the construction. The construction of the project puts forward very high requirements, and the construction is extremely difficult. The type of ultra-deep underground diaphragm wall is used for the main foundation pit enclosure structure of the airport. The supporting design model of foundation pit is used for the simulation and calculation. Referring the relevant technical specifications, through the theoretical analysis and combined with the engineering practice of Pudong Airport, the application of key design and construction technologies of underground diaphragm wall is studied, which can be referred for the design and construction of the similar projects and its application.
