Murghal tunnel
The Murgentunnel is a 4745 meter long, double-lane railway tunnel on the new Mattstetten – Rothrist line of the Swiss Federal Railways (SBB).
The tunnel, opened in 2004, begins east of the Bern / Aargau canton border formed by the Murg river and circles the Aargau town of Murgenthal in an elongated arc . The construction, which was completed on time, could be billed a lot cheaper than estimated.
Tunneling
The double-lane tube was excavated with the same tunnel boring machine with which the two tubes of the Bözberg motorway tunnel had already been excavated. It has a shield diameter of 11.98 m and a length of 8.8 m. The motors with an output of 3,200 kW develop a contact pressure of 64,000 kN. After this operation, the machine was used for the construction of the Flüelen bypass of the A4 national road .
Railway technology
As usual with newer tunnel constructions, but otherwise not in use on the Swiss rail network up to this point in time, the Murghaltunnel was provided with a slab track (type "SBB Bözberg / STEDEF") .
literature
- Ralph Glaus: Through the mountain with millimeter precision - The work of the surveyors in the Murghal tunnel, Swiss construction journal, 2000
Individual evidence
- ↑ Breakthrough of the Flüelen Tunnel at Vierwaldstätter See ( page no longer available , search in web archives ) Info: The link was automatically marked as defective. Please check the link according to the instructions and then remove this notice. , tunnel-online.info, September 13, 2002
