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Abstract: For the excavation of Lot 3 of the Metro Los Teques Line 2 in Venezuela, a great chal-lenge must be overcome due to a change of the alignment with respect to the original design. The new ground conditions are not appropriate for the typical application of EPB shields, which is the methodology used so far in the previous lots. The 3 km Lot 3 is excavated in areas with high overburden, high water...