The TBM S-994 was delivered to the joint venture ARGE Tunnel Eppenberg on 15 July on Herrenknecht AG's company site in Schwanau, Germany. Representatives of the project participants were present to witness the festive handover.
The machine in question is in fact a Mixshield TBM with a drill head diameter of 12.75 m. It will first be used in open hard rock mode for 1.9 km of excavation. Then, the machine will be switched underground to hydro shield tunneling prior to the excavation of the roughly 800 m long gravel track, which partially lies in groundwater. The tunnel boring machine will be disassembled and prepared for transportation to the construction site by the manufacturer with the assembly being scheduled for September.
Marti Tunnelbau AG