Structural design and research on key issues of underground comprehensive transportation hub in T3 terminal area of Pudong International Airport
The underground comprehensive transportation hub project in T3 terminal area of Pudong International Airport Phase Ⅳ Project is an ultra-deep mega-underground project with littoral environment,the construction area of about 640 000m2.Several subways,MRT,drainage canals,municipal road facilities,etc.pass through the basement,and the rail transit,municipal structure and the underground building structure of the terminal building are jointly built,so the structural complexity is high.The main structural characteristics of the project,preliminary experimental research and type selection design of pile foundation,and the design method for underground structures with multiple functions were introduced.Researches and countermeasures of several key structural design problems were expounded,such as the seismic analysis of super-large underground structures,the seismic performance design of underground hub structures,the influence of open basements on the seismic design of structures,the anti-cracking and seepage design of super-long underground structures,the influence of subway vibration on structural comfort,and the anti-explosion analysis of underground passage co-construction structures.
Pudong International Airportcomprehensive transportation hubco-construction of underground structureopen basementseismic resistance of underground structuresuper-long structurestructural anti-explosion analysis
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