Extension of Line 3 – Athens Metro

Construction of main tunnel, ventilation shafts and finishing of a station and its shafts The project was awarded by Attiko Metro SA and involves the construction of the main tunnel using the NATM method over a 805-metre span and the TBM boring method for another 6,445 metres, along with 8 shafts for natural ventilation and finishing of a Station and the shafts

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