Eppenberg rail tunnel

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

Marti Gruppe
Seedorffeldstrasse 21
3302 Moosseedorf
+41 31 388 75 75