The authors of the paper present the rock excavation and rock support works of the underground train stations for the Arlandabanan Project, a fast railway link between the Stockholm City and the Arlanda Airport. The project was the first major BTO (Build-Transfer-Operate) project in Sweden. The underground complex in the airport area consists of three 23 m span underground stations and the connecting single and double track tunnels. The train stations are located directly under the terminal buildings. The rock excavation works and rock support design of one of the three underground stations, "Shuttle Station 2" located under Terminal 5, will be presented in this paper.
Les ecrivains de l'article presentent le creusement de roc et les travaux de support du roc des stations de trains souterrains du Projet de ‘Arlandabanan’, un lien de chemin de fer de grande vitesse entre Ie centre de Stockholm et l'Aeroport de Arlanda. Le projet constitue Ie premier projet majeur de BTO (Batir-Transferer-Operer) en Suede. L'ensemble souterrain aupres de la zone de l'aeroport comprend trois stations souterrains de 23 m de portee ainsi que les tunnels de connexion de simple et de doubles voies. Les stations de train se trouvent directement en dessous des batiments d'aerogare. Les travaux de creusement de roc et la conception de support du roc d'une des trois stations souterrains, "La Station Navette no 2", qui se trouve en dessous de I'Aerogare 5, seront presente dans cet article.
In diesem Dokument sind die Tunnelbohrungs- und Bewehrungsarbeiten der Untergrundbahnhöfe des Arlandabanan-Projekts, eine Schnellzugverbindung zwischen Stockholm Stadtmitte und Flughafen Arlanda, beschrieben worden. Das Projekt ist das Erste grosse BTO (Build-Transfer-Operate) Projekt in Schweden. Das untererdische Baukomplex am Flughafen besteht aus drei Bahnhöfe, jeder mit einer Breite von 23 M, und die dazu gehorenden ein- und doppelspurigen Verbindungstunnels. Die Bahnhöfe sind gerade unter den Terminalgebauden des Flughafens belegen. Die Tunnelbohrungs-arbeiten und die Konstruktion der Bewehrung eines der drei Untergrundbahnhöfe,. die unter Terminal 5 belegene „Shuttle Station 2", sind in diesem Dokument beschrieben worden.
The Arlandabanan Project is a fast railway link between Stockholm City and the Arlanda airport. The project is the first major BTO (Build-Transfer-Operate) project in Sweden. The underground complex in the airport area consists of three underground stations with 23 m span, single/double track tunnels and 1.shafts for elevators and escalators. The underground train stations are located directly, under the terminal buildings. The total rock excavation volume was about 800 000 m3.
This paper will present the rock excavation work and the design of rock support, for the underground stations. Especially one of the three underground stations, "Shuttle Station 2", will be described.
The Shuttle Station 2 is 165 m long and is located under the international terminal, Terminal 5. The, terminal building is grounded on concrete footings with loads up to 11000 kN/footing on the ground surface. The rock overburden is about 11 - 13 m, less than. half the width of the station. The rock mass mainly consists of heavily foliated and jointed micaceous schist and gneiss.
The rock excavation work was planned and executed with great concern to the nearby terminal buildings. The design of rock support was conducted in parallel with, the excavation works.
