Bosruck tunnel second bore: a challenge for sequential tunnelling in various geological formations
Railway tunnels on Tbilisi bypass project - Georgia
A road tunnel in difficult geology with cross-sections up to 300 m2
Schal- und Betonarbeiten in der Kavernengarage Landsberg
"Val Fortore State Road 212" - Excavation of tunnels in structurally complex formations
Lainzer tunnel lot LT31 - tunnelling with side wall drifts in Vienna