FCC Construcción completes boring of the Bolaños tunnel on the Madrid-Galicia high-speed line
LEER MÁSWith an average excavation performance of 19.40 linear metres per day in the first tunnel, the work took 11.5 months to complete. The boring of the second tunnel saw an average excavation performance of 24.32 linear metres per day, resulting in a completion term of 9.5 months. Therefore, there was a two month reduction...