Technical specifications

Scope of work

  • Double-track mined tunnel
  • Length: 380 m, excavated crosssection: 90 m²;
  • 852 m constructed using the cut and cover method

Construction method

  • Sprayed concrete lining (SCL) method with tunnel excavator
  • Tunnelling under a high rise building
    protected by a pipe umbrella support system,
    under a four-lane federal road and an industrial building with a shallow overburden

Sandstone of varying strength

General data

U6 metro link to Fasanenhof
double-track tunnel

Stuttgarter Straßenbahnen AG

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

Construction period
2007 to 2010

Construction costs
€ 30 million

Metro tunnel, double-track
2 * 380 m
Construction Method
Sprayed concrete lining (SCL) method with tunnel excavator
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