Evaluation of a Foundation With Important Problems Caused By Regional Settlement

Abstract eng:
Terminal 2 of the International Airport of Mexico City was built to provide better services and spaces to passengers after the cancelation of the original project of the New International Airport of Mexico City in 2001. This expansion is composed of a Terminal Building founded on end bearing piers and two waiting rooms, the North and South structures, founded on friction piles. The regional subsidence phenomenon, caused by aquifer exploitation, has led to an accumulation of serious differential settlement between the structures that compose Terminal 2. Given the importance of ensuring the operation of this transport terminal in the case of an urban emergency and considering its functionality during the remainder of its service life, a revision of the current condition of the foundation system of each one of the edification elements was performed based on Mexico City’s Building Code. In addition, finite difference numerical models were developed in the FLAC 3D platform to analyze the dynamic soil-structure interaction in the case of an important seismic event. The results obtained are expected to facilitate decision making for minimizing the differential settlements accumulated in the structures.

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