Bærum Tunnel
Double | |
Track gauge | 1,435 mm (4 ft 8+1⁄2 in) |
---|---|
Electrified | 15 kV 16.7 Hz AC |
Operating speed | 160 km/h (99 mph) |
The Bærum Tunnel (
Specifications
The Bærum Tunnel is 5.5 kilometers (3.4 mi) long and is part of the 6.7-kilometer (4.2 mi) long section of the Asker Line between Lysaker and Sandvika. At Engervannet, at the Sandvika end, the tunnel mouths out with two 400-meter (1,300 ft) long arms, one on each side of the Drammen Line, allowing trains to connect to the correct direction of traffic through Sandvika.
History
The Asker Line runs from Lysaker Station via Sandvika Station to
There were four main contracts for building the line issued after public tenders. Three of these involved part of the tunnel, and were awarded to
The tunneling resulted in 800,000 cubic meters (28,000,000 cu ft) of soil, most of which was used for the expansion of the Port of
To make the tunnel watertight and frost-resistant, the walls were covered with
Freight trains started using the tunnel on 26 August 2011, and passenger trains on 28 August the same year. The official opening took place on 2 September 2011.[22] Along with several other projects west of Oslo, including a new Lysaker Station and Høvik Station, and an upgrade to the Drammen Line between Lysaker and Etterstad, the Asker Line was meant to allow for higher service frequency, higher regularity and faster trains west of Oslo after its completion.[23] The higher capacity was exploited with a new high-frequency schedule, named Route Plan 2012,[24] following delivery of new Stadler FLIRT trains.[23] This also allowed for more trains that stop at all stations on the Drammen Line, for three hourly trains to Vestfold and for six hourly trains stopping at the main stations west of Oslo.[23] The new schedule was implemented partially from the December 2012 timetable change, and completely from December 2014, following the completion of resignalling.[25][26]
References
- ^ Norwegian National Rail Administration (6 June 2008). "Første lys i tunnelen" (in Norwegian). Archived from the originalon 29 August 2012. Retrieved 24 January 2011.
- ^ Norwegian National Rail Administration (3 November 2006). "NO-Oslo: railway tunnel 2006/S 209-223334 Contract Notice Works" (in Norwegian). Archived from the original on 20 July 2011. Retrieved 17 February 2011.
- ^ a b Norwegian National Rail Administration (15 March 2007). "Dette er strekningen Lysaker-Sandvika" (in Norwegian). Archived from the original on 27 May 2011. Retrieved 24 January 2011.
- ^ a b Norwegian National Rail Administration (8 December 2009). "Evinnelig vindeltrapp på Ballerud" (in Norwegian). Archived from the original on 29 August 2012. Retrieved 24 January 2011.
- ^ a b c Norwegian National Rail Administration (2007). "Jernbanestatistikk 2007" (PDF). Archived from the original (PDF) on 24 July 2011. Retrieved 9 February 2011.
- ^ Norwegian National Rail Administration (March 2007). "Lysaker – Sandvika Fra to til fire spor" (PDF) (in Norwegian). Archived from the original (PDF) on 27 May 2011. Retrieved 19 February 2011.
- ^ Norwegian National Rail Administration (27 June 2008). "Spørsmål og svar" (in Norwegian). Archived from the original on 29 August 2012. Retrieved 24 January 2011.
- ^ Norwegian National Rail Administration (15 August 2005). "Dette er bygd på Sandvika-Asker" (in Norwegian). Archived from the original on 16 September 2009. Retrieved 24 January 2011.
- ^ a b Norwegian National Rail Administration (18 April 2007). "Entrepriser Lysaker-Sandvika" (in Norwegian). Archived from the original on 18 September 2009. Retrieved 24 January 2011.
- ^ a b "Syv kjemper om tunnelbygging". Budstikka (in Norwegian). 6 November 2006. Archived from the original on 5 March 2012. Retrieved 24 January 2011.
- ^ a b Norwegian National Rail Administration (15 March 2007). "Slik bygges tunnelen" (in Norwegian). Archived from the original on 18 September 2009. Retrieved 24 January 2011.
- ^ Norwegian National Rail Administration (26 June 2007). "Lysaker – Sandvika: Første salva skoten" (in Norwegian). Archived from the original on 27 May 2011. Retrieved 24 January 2011.
- ^ Norwegian National Rail Administration (11 July 2007). "Tunneldrift med rent vann" (in Norwegian). Archived from the original on 29 August 2012. Retrieved 24 January 2011.
- ^ Norwegian National Rail Administration (11 July 2007). "Grunnbrudd tok Kolsåsbanen" (in Norwegian). Archived from the original on 29 August 2012. Retrieved 24 January 2011.
- ^ Mikalesen, Knut Erik; Røli, Olav (25 June 2009). "Enorme ødeleggelser på skinnegang i Bærum". Aftenposten (in Norwegian). Archived from the original on 6 March 2012. Retrieved 14 February 2011.
- ^ Norwegian National Rail Administration (19 October 2008). "Siste gjennomslag i Bærumstunnelen" (in Norwegian). Archived from the original on 28 June 2011. Retrieved 24 January 2011.
- ^ Günther, Morten (25 June 2009). "Overvåking holder tunnelen tett". Forskning.no (in Norwegian). Archived from the original on 6 March 2012. Retrieved 24 January 2011.
- ^ Norwegian National Rail Administration (29 October 2009). "Jernbaneteknikk inntar Bærumstunnelen" (in Norwegian). Archived from the original on 29 August 2012. Retrieved 24 January 2011.
- ^ Norwegian National Rail Administration (20 October 2010). "Steinull mot støy" (in Norwegian). Archived from the original on 29 August 2012. Retrieved 24 January 2011.
- ^ Norwegian National Rail Administration (15 December 2010). "Klart for sporlegging i Bærumstunnelen" (in Norwegian). Archived from the original on 29 August 2012. Retrieved 24 January 2011.
- ^ "Millioner i tunnel". Budstikka (in Norwegian). 20 December 2008. Archived from the original on 24 January 2011. Retrieved 24 January 2011.
- ^ Strande, Mona (24 August 2011). "Snart kjører toget her". Teknisk Ukeblad (in Norwegian). Retrieved 11 September 2011.
- ^ a b c Bentzrød, Sveinung Berg; Foss, Andreas Bakke (23 July 2009). "NSB bryter løfter om bedre tider". Aftenposten (in Norwegian). Archived from the original on 28 June 2011. Retrieved 14 February 2011.
- ^ Bentzrød, Sveinung Berg; Hultgren, Jon (10 November 2010). "Regjeringen tok livet av "togrevolusjon"". Aftenposten (in Norwegian). Archived from the original on 12 November 2010. Retrieved 14 February 2011.
- ^ Norwegian National Rail Administration (June 2014). "On track. Glimpses from the Norwegian National Rail Administration's activities in 2013" (PDF). Retrieved 22 January 2022.
- ^ Norwegian National Rail Administration (June 2015). "On track. Glimpses from the Norwegian National Rail Administration's activities in 2014" (PDF). Retrieved 22 January 2022.