Special Foundation Works for the Schwarzkopftunnel Bypass

Quelle/credit: Bauer Spezialtiefbau GmbH

Overview of the route section (trough Etzbachtal) between Tunnel Hirschberg and Tunnel Metzberg (East portal, in the background)

Quelle/credit: Bauer Spezialtiefbau GmbH

Alignment of the Schwarzkopftunnel bypass

Quelle/credit: Bauer Spezialtiefbau GmbH

Open cut method Tunnel Hain: contiguous pile wall, slope and soil nailing next to existing track

Quelle/credit: Bauer Spezialtiefbau GmbH

FE-model for the soil nailing in the area of the Tunnel Hain

Quelle/credit: Bauer Spezialtiefbau GmbH

Shotcrete works during soil nailing in the area of the Tunnel Hain

Quelle/credit: Bauer Spezialtiefbau GmbH

Tensile test for soil nailing analysis in the area of the Tunnel Hain

Quelle/credit: Bauer Spezialtiefbau GmbH

Between Würzburg and Frankfurt, the German railway company Deutsche Bahn has a route section newly built which is to replace passage through the Schwarzkopf Tunnel. The almost 160-year old tunnel no longer meets today’s requirements; passenger trains can only pass through the tunnel with reduced maximum speed. Heavy freight trains however need additional helper engines due to the steep

inclination. Bauer Spezialtiefbau GmbH executed in a joint venture all required special foundation works which could not be constructed by mining method.

The upgraded Hanau–Nantenbach line is part of the Main Spessart route between Hanau and Würzburg. The route has been operational since the middle of the 19^th century and is numbered among the busiest routes of the Deutsche Bahn network. As a central axis of long-distance and freight traffic it links the economic centres of the Rhine-Main District with Würzburg and the region of Franconia.

A core measure of the upgrading is the bypass of the Schwarzkopf Tunnel between Laufach and Heigenbrücken.

In connection with the upgraded Hanau–Nantenbach line four new tunnels are installed for the bypass of...

The upgraded HanauNantenbach line is part of the Main Spessart route between Hanau and Würzburg. The route has been operational since the middle of the 19th century and is numbered among the...

Special Civil Engineering