As part of the lecture Rock and Tunnel Construction, interested students visited the construction site of the longest construction section (intermediate attack Fröschnitzgraben) of the Semmering Base Tunnel. The construction site equipment for sinking the shafts was visited, as well as the preparatory work for the Longsgraben landfill. The focus of the inspection was on the up to 25 m high reinforced earth constructions and various slope stabilizations. The complex interplay between the legal basis, the construction industry aspects and the geotechnical aspects was explained using the project as an example.