New Cut-and-Cover Construction of the Hagnau Tunnel
Credit/Quelle: www.maps.google.com
Credit/Quelle: PAW Projekt Unterfangung Tunnel Hagnau, ASTRA
Credit/Quelle: Bundesamt für Strassen ASTRA
Credit/Quelle: Ausführungsunterlagen, AFRY Schweiz AG
Credit/Quelle: AFRY Schweiz AG/Bernhard Ramsauer
Credit/Quelle: AFRY Schweiz AG/Bernhard Ramsauer
Credit/Quelle: AFRY Schweiz AG
Credit/Quelle: AFRY Schweiz AG
Credit/Quelle: AFRY Schweiz AG
Credit/Quelle: Ausführungsunterlagen, AFRY Schweiz AG
Credit/Quelle: AFRY Schweiz AG
As part of the Schänzli maintenance project, the Hagnau Tunnel was demolished and reconstructed as an open building pit. It is located along the SBB railroad embankment with seven tracks running above the tunnel. It was required to maintain the operation of the railroad and the national motorway during the entire construction period. This project provides an insight into innovative planning for construction in and/or on existing structures. This technical article was awarded first place as one of two presentations at the Colloquium as part of the Swiss Tunnel Congress 2023.
1 Schänzli Maintenance Project
1.1 Overall Project Overview
The FEDRO Schänzli maintenance project in the canton of Basel-Landschaft involves comprehensive repair of the motorway section from the Hagnau junction to the Muttenz south junction on the A2 and A18 motorways as part of several sub-projects. The route was previously repaired over a length of around 10 km. In addition to the construction and extension of noise barriers, the road surface was essentially replaced with low-noise surface material. In addition, the motorway entrances and exits were renovated throughout the project perimeter....
