Semmering Basistunnel 3.1 - Shaft Construction Tunnel Grautschenhof
ARGE SBT 3.1. Grautschenhof - Marti GmbH/ Marti Tunnelbau AG
2016 - 2017
Sinking of 2 vertical shafts each with app. 100m depth. The cross section area is about 154m² respectively app. 50m². The excavation is executed as drill and blast and a wateringress up to 20 l/s. is expected.