Not for sun worshippers
To be a construction expert in underground mining, respect for mother nature and experience are essential. Our accomplished teams’ know how to make optimal use of their expertise in order to bring the project to a rapid conclusion.
The most important construction projects today in the area of underground mining are the sections of the Gotthard tunnel which traverse the Alps. We are the leading contractor on the construction of the longest section Bodio-Faido and on the particularly demanding section at Sedrun.
Large construction projects in the area of public transport both at home and abroad as well as the contracts associated therewith involve considerable investments and risks. A certain company size is thus essential, to ensure that the necessary financial resources and the corresponding expertise are available.
Services provided
- Excavation, rock support and lining of underground works
Tunnels, galleries, caverns and shafts - Drill and blast in Rock
- Headings in rock with tunnel bore machines (TBM)
Tunnel bore machines with and without shield, Tunnel bore widening machines - Machine-supported excavation in rock
- Shield machine excavation in soft ground
Hydroshield, earth pressure balance shield, compressed air shield and platform shield with concrete segment lining - Machine-supported excavation in soft ground
- Special construction measures/Construction support measures
Pipe screen, diamond screen, jet grout arch, grouting, ground freezing, facial anchor points - Renovation of underground engineering works and railway tunnels
- Execution of underground engineering works as a general contractor