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Abstract: The alignment of Metro Line 5 Lot 7 runs for 5.75 km under the city of Sao Paulo with an overburden between 7 m and 47 m. The tunnel is excavated with an EPB-shield of 10.58 m diameter mainly in sands and clays, with a short part where an organic clay layer is encountered within the cross-section. For the horizontal stresses in the ground a coefficient of lateral stress between 0.5 and 0.8 is...