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Gotschna safety gallery, Klosters

Safety gallery with escape cross-over points every 300 m. Tunnel length 4,202 m, of which 4,022 m heading with tunnel boring machine. Portal construction in total 140 m using cut-and-cover method.

  • Mechanical hard rock heading with 4.50 m diameter gripper machine.
  • Atlas MK 15 with high-performance trailer.
  • Conveyor belt waste disposal.
  • Portal construction in total 140 m using cut-and-cover method.
  • A pipe umbrella is first required at both portals.
  • Total length 40 m.

Map

Specific figures

Contract value

CHF 24.2 million

Construction period

2003 - 2005

Length

4202 m

Total excavated surface

16 m2

Contact for questions about the project

Implenia Industrial Construction
Telefon: +41 43 233 39 90
E-Mail: Sandra.Guetg@implenia.com