Technical specifications

Scope of work
Construction of two pilot tunnels
in the course of the construction of Leipzig City Tunnel,
Section C

Length

  • 110 m and 145 m
  • Internal diameter: 2.40 m

Construction method

Pipe jacking with a slurry-supported tunnel face

  • AVN 2000 tunnelling machine
  • External diameter: 2,400 mm
  • Enlarged to 3,000 mm

Wall thickness of jacking pipes 

  • 30 cm, standard length: 3 m;
  • Max. settlement 3 mm

Geology

  • Sand
  • Gravel

General data

Project 
Pipe jacking under Leipzig Main Station

Client 
City Tunnel Leipzig Joint Venture consisting of

  • Wayss & Freytag Ingenieurbau AG
  • and Strabag AG

Contractor 
Wayss & Freytag Ingenieurbau AG
as technical leader of a joint venture

Construction period
October 2006 to July 2007

Construction costs
€ 2.8 million

Utilisation
Infrastructure
Type
Pilot tunnel
Length
110 and 145 m
Construction Method
Pipe Jacking
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