Untertagbau

Tunnel Lungern - Nationalstrasse A8, Ortsumfahrung Lungern / Lungern Tunnel - National Motorway A8, Lungern Bypass

Complicated excavation altering an existing tunnel – the west portal of the Visp by-pass

A9, Umfarung Visp

The new Linth-Limmern hydro-power plant – design of caverns under 500 m overburden

PSW Linth-Limmern, Maschinenkaverne

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