Andesita Project. Sinking Level and Production Level. Package 1
Project Information: The project consists of two phases of execution: 16 and 26 months. The horizontal developments will be executed at the sinking and production levels, 14,696 m in total (3,790 m + 10,906 m). The work also includes 243 m vertical developments and civil, electrical, instrumentation and special works
Lima Metro. Stage 1B. Package 01
Project Information: The section has a length of 1,312 ml and requires a PV-19 ventilation shaft to be constructed in the centre of the section to allow access to the line tunnel being built. The project includes a gallery for 4 No. 301 ml routes.
Santiago de Chile Metro. Line 3, Sections B and C
Project Information: Construction of 2,223 m long tunnel, with a cross section between 64 to 75 m2, linking an underground station 120 m long and 172 m2 in section, called Lo Cruzat, with another open-cut station of the same length, called Plaza Qulicura. For the excavation of the tunnel, three circular attack pits of 15 […]
Waterproofing B-40 Tunnel
Project Information: The work consists of installing two layers of material (Geotextile + PVC) that will act as a physical barrier between the natural terrain and the structure in order to prevent water leakage and ensure correct sealing, thus avoiding the negative effects resulting from water accessing the structure. In total, nearly 80,000m2 of waterproofing […]
Waterproofing Bouzas Tunnel; Miamán-Ponte Ambía
Project Information: The work consists of installing two layers of material (Geotextile + PVC) that will act as a physical barrier between the natural terrain and the structure in order to prevent water leakage and ensure correct sealing, thus avoiding the negative effects resulting from water accessing the structure. These sheets are installed using a […]
Waterproofing Pedralba Tunnel
Project Information: The work consists of installing two layers of material (Geotextile + PVC) that will act as a physical barrier between the natural terrain and the structure in order to prevent water leakage and ensure correct sealing, thus avoiding the negative effects resulting from water accessing the structure.
Waterproofing Mondragón-Elorrio Section
Project Information: Tunnel: Consists of installing sheets that cover the entire upper section of the tunnel and part of the side walls as far down as the drainage tube for collecting water entering by seepage. A double coating is used: first a porous geotextile sheet is placed in direct contact with the support and a […]
Esti Hydropower Plant
Project Information: Conveyance tunnel of 4,500 m in length. Demolished due to building defects and land swelling. Work consists of the design and build of definitive repairs, covering, plating and new access points to the tunnel to allow the Esti plant to start operations. No swelling has been detected – seems to be due to […]
Toquepala Mine
Project Information: Primary crusher and conveyor belt transportation tunnel. Length of 2 km. Tunnel section 35.08 m² with width extensions every 200 m. The mine area is at 3,600 m above sea level, resulting in snowed areas. The mine deposit at Toquepala contains copper and molybdenum. Rocks with predominant RMR (Rock Mass Rating) of between […]
Esperanza Mine
Project Information: The work involves the execution of the project and the excavation and support of a 71 m mine tunnel under a coarse ore stockpile.
