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Abstract: As part of the Hydraulic Master Plan, designed by the Buenos Aires city government,the Maldonado basin flood control project was developed. The project comprises two alleviation tunnels, 4,5 and 10 km long, with an internal diameter of 6,90 m. The tunnels were bored using TBM machines with EPB procedures between 2009 and 2011. The tunnels alignments intersect a heterogeneous soil profile with...