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  Analysis of the excavation of large caverns in the São Paulo Metro

  The excavation of large caverns in urban areas densely populated, in soil and under the groundwater table is always a challenging and highly risky task. This is the case of the excavation with conventional methods of the large caverns of the extension of line 5 of São Paulo Metro. In this paper, the results of the excavation in terms of monitoring data will be compared with the theoretical and the numerical studies realized at the design stage, trying to describe the lesson learnt for this kind of excavation in the particular context of the city of São Paulo.

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