Fischer

Renovation of the Engelberg Tunnel – Automated Drilling Operations With Construction Robots

Three Fischer BauBots drilled over 9000 holes with a diameter of 20 mm and a drilling depth of 240 mm at heights of up to 7.5 m in the Engelberg Tunnel in a fully automated process Credit/Quelle: fischer
Three Fischer BauBots drilled over 9000 holes with a diameter of 20 mm and a drilling depth of 240 mm at heights of up to 7.5 m in the Engelberg Tunnel in a fully automated process
Credit/Quelle: fischer

Autobahn GmbH‘s Southwest branch is currently carrying out comprehensive structural and operational renovations on the Engelberg Tunnel in Leonberg (Baden-Württemberg). Three Fischer BauBots were used for this project. The construction robots drilled more than 9000 holes with a diameter of 20 mm and a depth of 240 mm at a height of up to 7.5 m fully automatically. This increased efficiency and precision in fastening tasks.

Deformations Caused by Swelling Anhydrite Rock

The Engelberg Tunnel is part of the important A81 federal highway and crosses the Engelberg mountain north of the Leonberg...

Find out more in

tunnel 05/2025

Find out more in

tunnel 05/2025

Ressort:  Sanierung | Redevelopment
subscription Content

Related articles:

Issue 02/2011 Switzerland

The Engelberg Tunnel goes intro Operation

After an almost 10-year construction period the single-track Engelberg Tunnel between Grafenort and Engelberg was opened on December 12, 2010 coinciding with the introduction of the winter timetable....

more
Issue 05/2010 New Products

Multiple Drilling System first time used

Untertiteltext Englisch

On the occasion of the 2009 STUVA Conference the Hilti Deutschland GmbH presented a new multiple drilling system to the public for producing drill holes for anchors and subsequent reinforcement...

more
Issue 05/2023

Brenner Base Tunnel: Sandvik DT923i Used for Drill and Blast Excavation of the Main Tunnels

Around 158 km of the total of approx. 230 km of tunnel had been excavated by the end of August 2023. The BBT consists of two 8.1 m wide single track tunnels that run at a distance of 40–70 m. At...

more
Issue 02/2025

Renovation of the Horchheim Tunnel

1 Importance of Tunnel Renovations at Deutsche Bahn In addition to the major challenges posed by the many new construction projects with a high proportion of tunnels, Deutsche Bahn (DB) must also...

more
Issue 03/2013 Anchoring

„Semmering Base Tunnel New” – Securing the Precut with ­Self‑Drilling Anchors

In April 2012, work started on one of the most ambitious construction projects of Austria’s ÖBB-Infrastruktur AG: the New Semmering Base Tunnel. Scheduled for completion in 2024, the 27.3 km long...

more