Tunnel Baumleite

Client

DB Netz AG
DB Projekt Bau GmbH, RB Südost, Erfurt, Germany

Contractor

BeMo Tunnelling GmbH (BeMo)
(formerly: Beton- und Monierbau)

Project location

High-speed rail line Ebensfeld-Erfurt, Schalkau, Germany

Start of construction

2009

End of construction

2011

Project total value

47.5 million €

Geology

Lower lacustrine limestone („Unterer Muschelkalk“) with karstic cavities / karst formations

Technical Data

• Twin-track railway tunnel, 1 tube + 3 emergency exits (2 galleries and 1 shaft)
• Total length of main tunnel: 4,311.02 ft (1,314 m)
o Cross section: 1345.49 – 1732 SF (125 - 161 m²)
• Emergency shaft and gallery (NA 2):
o Shaft depth: 131.23 ft (40 m)
o Cross section: 715.26 SF (66.45 m²)
• 2 emergency galleries with crosspassages to the tunnel:
o Gallery - parallel (NA 1): 285.43 ft (87 m)
o 1 Crosspassage (NA 1): 82.02 ft (25m)
o Gallery - parallel (NA 3): 771.00 ft (235 m)
o 1 Crosspassage (NA 3): 82.02 ft (25 m)
o Cross section (NA 1, NA 3): 184 SF (17 m²)
• Excavation by drill and blast, excavator
• Execution by NATM, in-situ secondary lining

Further project related information

• Structural Analysis and Detailed Design (work & as-built drawings) by BeMo’s Tunnel Design Department (started in May 2009)
• Crown of the tunnel 26.25 ft – 98.43 ft (8 m - 30 m) below ground surface