Tunnel Petersberg (Germany) – Tunnel in tunnel method

Описание к видео Tunnel Petersberg (Germany) – Tunnel in tunnel method

Marti Germany is renovating and extending an electrified railway tunnel under traffic. The so-called tunnel widening system, developed by Marti Technik, is the decisive factor here. The Petersberg Tunnel Expansion project sets new standards and demonstrates the innovative strength of Marti engineers.

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