Oenzberg Tunnel, Aeschi

Mattstetten-Rothrist railway 2000, Oenzberg bei Wanzwil junction.

1 double-track tunnel of 3,170 m in length, of which 1,970 m in molasse, west and east cut-and-cover section 880 m (Oenzberg Tunnel). Unconsolidated rock 320 m.

2 single-track tunnels of approximately 510 m each. Molasse section 750 m, cut-and-cover section 270 m (Wolfacher North/South).

Inkwil groundwater tank, 560 m long.

Oenzberg Tunnel with mixed-shield TBM, 12.33 m diameter
Molasse section heading in full face technique (dry)
Unconsolidated section with hydro-shield heading
Excavation cross section approx. 120 m2

Map

Specific figures

Contract value

CHF 200 million

Construction period

2000 - 2004

Length

2290 m

Total excavated surface

119.4 m2

Contact for questions about the project
Implenia Industrial Construction
Telefon: +41 43 233 39 90
E-Mail: Sandra.Guetg@implenia.com

Services

Underground construction
- Transport tunnels (tunnels, underground power plants, shafts)

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