On November 28, 2016, the new railway station for the town of Holmestrand, located in the Vestfold area, opened for the public. This station is on the Vestfold Line, from the city of Skien to Eidsvoll through Drammen and Oslo, and belongs to the future development of a high speed rail connection of those cities.
The 350-meter long train station is located in the center of the 12km Holmstrandsporten tunnel, and is accessible through 2 entrance tunnels and a 75-meter lift shaft from atop the mountain. Two rail tracks are located in the Holmestrandsporten tunnel, and at the station it widens for approx. 500-meters and covers 4 tracks. The station is designed for 2 passing trains at full speed while 2 trains are stopped at the platforms.
This project is unique in its kind and is defined by the following specific challenges:
- The structure of this train station is built inside a tunnel and hung on approx. 700 hangers from the ceiling of the tunnel. Due to this positioning, each individual hanger is adjustable to each unique individual position. The final length is determined through 3D survey.
- Positioning of the concrete platforms in the main tunnel and walls in the access tunnels as all paths are under an angle.
- The combination of different materials for the station was a challenge of its own; Duplex Stainless Steel is used for the hanger construction, the main steel is hot dip galvanized (extremely high thicknesses 200mu), the secondary girders and facade are made of aluminum, and for mainly architectural purposes the steel in the access tunnels and above the platforms are Corten steel.
- High architectural requirements on aesthetics of (visual) steel and cladding.
What made the project successful
The survey was perfectly executed and imported in Tekla