Subway Station Retaining Walls: Case Histories in Soft and Hard Soils

In the last 20 years, 16 pile-supported metro stations have been build in Buenos Aires in a wide range of geotechnical conditions. After an initial design of the construction procedures, including partial open-trench (in two cases), all subsequent 14 stations were excavated employing cut-and-cover techniques. This paper revisits the geotechnical conditions in Buenos Aires City, describes the procedures employed for the design and numerical analysis of pile-supported excavations and presents the behaviour of five recent cases in widely different geotechnical profiles. To read more, please download this free paper.

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