Tunneling

FOR MORE THAN 25 YEAR HISTORY, THE COMPANY HAS COMPLETED THE FOLLOWING TUNNEL PROJECTS:

more than 52 km of tunnels of various diameters, including:
31 km drainage and sewer tunnel
19.3 km metro tunnels
1.8 km railway tunnel
And
5 metro stations

The company performs tunneling using the shield and drilling-and-blasting (New Austrian) methods using its own equipment for underground work. Construction is being carried out in regions of increased seismicity and difficult mining and geological conditions.