Construction of the By-pass South M-30. North tunnel. Madrid

Construcción del By-pass Sur M-30. Túnel norte. Madrid.

Functional diagram of the TBM. Simulation in 3D. Weighing 4,366 tons, a power of 12,000 kilowatts, a length of 107 meters and a diameter of 15.2 meters, 'Dulcinea', the world's largest TBM tunnel built north of the bypass south of the M-30.

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