As part of the lecture Rock and Tunnel Construction, interested students visited 2 construction lots of the construction site of the Semmering Base Tunnel. The construction site equipment of the longest construction phase (construction lot SBT 2.1 intermediate attack Fröschnitzgraben) with 2 shaft structures was visited, as well as the Longsgraben landfill. The focus of the inspection of the landfill 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. Subsequently, the injection work currently underway and the shaft construction site were inspected at the SBT 3.1 Grautschenhof construction lot.