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South America: Túnel Sur – Los Bronces, Tunnelling: TBM vs Drill & Blast
The comprehensive development of this project in Chile began in 2007, continued into 2012 and covered the conceptual stage to supervising construction of an 8km exploration tunnel with a 4.5m excavation diameter with TBM. This study included the conceptual and basic engineering for drill & blast and TBM. SRK also developed the bidding package, supported the contractor selection process and the technical inspection of works such as operational control of the excavation cycle with TBM, geological-geotechnical control of the tunnel, and topographic, quality and cost control.
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