Job Description

Within the project „Verkehrsprojekt der Deutschen Einheit 8“ we were commissioned for surveying the Tunnel Silberberg, which is with 7391 m the second longest tunnel in the new railroad track Ebensfeld – Erfurt as well as the contiguous tunnels Brandkopf (1493 m) and Lohmeberg (688 m) which are driven in miner’s fashion.


· reference-point network
· recordings as planning guide
· coordination of the entire surveying
· tunnel drive navigation
· scanner records
· geotechnical engineering

Basic facts

Lenght: 9,5 km
2 parallel tunnel (2744 m)
evacuation tunnel (547 m)
3 intermediate tunnels (1515 m)
construction budget: EUR 290 M
duration: 3 years