Widderstall tunnel

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Widderstall tunnel
Widderstall tunnel
West Portal (July 2020)
traffic connection New Wendlingen – Ulm line
place Ram stable
length 962 m
Number of tubes 1
Largest coverage until 10
construction
Client Deutsche Bahn
start of building 2013
completion 2016 (shell, planned)
planner Wayss & Freytag Ingenieurbau AG
business
operator DB network
release December 2022 (planned)
location
Widderstall tunnel (Baden-Württemberg)
Red pog.svg
Red pog.svg
Coordinates
West portal 48 ° 31 '43 "  N , 9 ° 42' 25"  E
East portal 48 ° 31 '36 "  N , 9 ° 43' 10"  E

The Widderstall tunnel is an approximately 962 m long railway tunnel on the new Wendlingen – Ulm line . It is located in the area of ​​the hamlet Widderstall of the Merklingen municipality in Baden-Württemberg and therefore bears his name.

The shell of the tunnel has been completed (as of 2017).

Location and course

The structure is being built parallel to Federal Motorway 8 . The west portal is at building kilometers 55.104, the east portal at 56.023. The route runs in the tunnel towards the east portal largely in a straight line, which merges into a 374 m long superelevation ramp for an arc of 2948 m radius from 55.796 km . The gradient in the tunnel descends continuously with a gradient of 10.502 per thousand towards the east portal.

Technical design

The cross-section of the double-track tunnel will have a mouth profile and will be built using the cut- and- cover method . The cover is up to 10 m. A total of 93 in-situ concrete blocks with a standard length of 10.00 m and two portal blocks of around 16.50 m are to be built.

history

planning

The building was 2008 m with a length of 962 plan established .

When the financing agreement for the new line was concluded, the shell construction costs of around 23.4 million euros per kilometer were expected for the tunnel.

A 40 m high mast for GSM-R and public mobile communications is to be built at the east portal of the tunnel .

In August 2020, the displacement of a designated "Merklingen-Widderstall" was over control center plane determined the tunnel adjoining region in the west.

Tendering and awarding

The construction contract was advertised on July 7, 2012 in the electronic gazette of the European Union . The construction contract to be awarded should start on November 15, 2012 and be completed on April 30, 2016. The award took place in a negotiated procedure , for which applications to participate should be received by July 23, 2012. The contract for implementation planning and construction of the tunnel was awarded at the beginning of December 2012 to a consortium led by Wayss & Freytag . The order volume is around 37 million euros.

The award was formally announced on October 23, 2014. The contractor for the order for EUR 36,689,572.75 is the bidding consortium Wayss & Freitag Ingenieurbau AG / HOCHTIEF Solutions AG / ALPINE Bau Deutschland AG .

The total cost of the structure was given at the beginning of September 2015 at 48 million euros.

construction

In February 2013, work began on clearing the construction site from vegetation, and the construction site was then set up in March 2013. The main construction work began on April 8, 2013 with the temporary dismantling of a motorway parking lot above the tunnel. The reopening of the car park is planned for March 2015.

In February 2015 around 80 percent had been excavated and around 140 m of the vault was completed. At the beginning of September 2015, half of the tunnel blocks had been constructed and the first segments covered.

According to information from Deutsche Bahn, a number of small karst holes were found during the construction of the tunnel , which should have been explored and filled individually. In mid-May 2015 it became known that a 15 meter long, 10 meter wide and 12 meter high karst cave had been cut in the area of ​​the southern excavation slope. The cave, which is not connected to any other cave, was entered in the Swabian Alb cave register as a "Trassenhöhle" and filled with stones, rubble and concrete. According to the railway, it was the first large cavity in the area of ​​the Alb plateau and Alb descent sections.

The entire tunnel should be completed in November 2015. The completion was delayed due to karst phenomena . The eastern portal and thus the shell of the tunnel was completed in August 2016. Commissioning will take place with the opening of the entire high-speed line planned for December 2021.

A total of 442,000 cubic meters are to be excavated.

  • Earthworks on the future east portal (May 2013)

  • Earthworks on the future west portal (May 2013)

  • Construction site in July 2014, future east portal

  • ditto, from the opposite direction

  • Aerial photo November 2015, tunnel partially heaped up, view to the east

  • ditto, looking west

literature

  • Stefan Kielbassa: Stuttgart – Ulm rail project: Widderstall tunnel . In: tunnel . No. 5 . Bauverlag BV GmbH, August 2016, ISSN  0722-6241 , p. 18–26 (German, English).

Web links

Individual evidence

  1. ↑ a b c d D-Stuttgart: Tunnel construction work . Document 2012 / S 129-214642 of July 7, 2012 in the Electronic Official Journal of the European Union.
  2. ↑ Steinbühl tunnel: inner shell completed. In: bahnprojekt-stuttgart-ulm.de. November 20, 2017. Retrieved November 20, 2017 .
  3. ↑ a b c Overview elevation plan PFA 2.3: km 53,415… 58.992 . Annex DB 2.4 , sheet 1 of the planning approval decision of the Tübingen regional council of November 12, 2008 (file number 15-3 / 0513.2-21). Document released on September 23, 2005.
  4. ^ A b Matthias Breidenstein, Stefan Kielbassa, Herwig Ludwig: An overview of the tunnels on the new Wendlingen – Ulm line . In: tunnel . Official organ of the STUVA . tape 32 , no. 2 . Bauverlag BV GmbH, March 2013, ISSN  0722-6241 , p. 28-40 .
  5. ↑ German Bundestag (ed.): Answer of the Federal Government to the minor question from MPs Winfried Hermann, Dr. Anton Hofreiter, Dr. Valerie Wilms, another member of parliament and the BÜNDNIS 90 / DIE GRÜNEN parliamentary group - Printed matter 17/4001 - Current developments on the planned new Wendlingen – Ulm line (PDF file; 105 kB). Printed matter 17/4293 of December 17, 2010.
  6. ↑ Deutsche Bahn erects two 40 meter high radio masts . In: Schwäbische Zeitung . September 21, 2017, p. 21 .
  7. ↑ Plan change notification according to § 18 Abs. 1 AEG i. V. m. Section 76 (2) VwVfG and Section 18d AEG for the project “Project Stuttgart-Ulm, PFA 2.3, 7th change of plan“ Transfer point Merklingen-Widderstall ”” in the municipality of Merklingen Railway km 54.580 to 57.338 on the 4813 Feuerbach - Stuttgart main station deep - Ulm Hbf. (PDF) Federal Railway Office, August 13, 2020, accessed on August 19, 2020 .
  8. ^ Germany-Stuttgart: Construction work for railway lines. Document 2019 / S 143-351187. In: Supplement to the Electronic Official Journal of the European Union . July 26, 2019, accessed on July 28, 2019 (German).
  9. ^ Germany-Stuttgart: Catenary construction work. Document 2019 / S 211-515153. In: Supplement to the Electronic Official Journal of the European Union . October 31, 2019, accessed on November 1, 2019 (German).
  10. ↑ Railway project Stuttgart – Ulm e. V. (Ed.): Construction of the Widderstall tunnel on the new Wendlingen – Ulm line commissioned by Bahn (PDF file; 124 kB). Press release No. 046/2012 RW dated December 11, 2012.
  11. ^ Germany-Stuttgart: tunnel construction work. Document 2014 / S 204-362031 of October 23, 2014 in the supplement to the Electronic Official Journal of the European Union .
  12. ↑ Niko Dirner: Widderstall tunnel half finished . In: Südwest Presse . September 4, 2015, ZDB -ID 1360527-6 , p. 19 ( swp.de ).
  13. ↑ New Wendlingen – Ulm line: Deutsche Bahn prepares the construction site for the Widderstall tunnel near Merklingen ( Memento from March 8, 2013 in the web archive archive.today ) Press release from Deutsche Bahn from February 13, 2013
  14. ↑ a b New line: the next section is tough . In: Augsburger Allgemeine . February 12, 2015, p. 33 .
  15. ↑ Deutsche Bahn places another order on the new line . In: Südwest Presse . February 12, 2015, ZDB -ID 1360527-6 , p. 22 ( swp.de ).
  16. ↑ Ralf Heisele: Nothing for warm showerers . In: Geislinger Zeitung . September 4, 2015, p. 19 .
  17. ↑ Holger Gayer, Christian Milankovic: 'Wait and see how fast we get here' . In: Stuttgarter Zeitung . No. 78 , April 4, 2015, p. 23 ( online ).
  18. ↑ Discovered: Karst cave near Widderstall . In: Schwäbische Zeitung . May 13, 2015, p. 23 (among other titles online ).
  19. ↑ Joachim Striebel: Cave cut into during the construction of the railway line . In: Südwest Presse . May 15, 2015, ZDB -ID 1360527-6 , p. 20 .
  20. ↑ Here we go: Start of construction on the new Wendlingen – Ulm Augsburger Allgemeine line on March 30, 2013
  21. ^ Germany-Stuttgart: Construction work for railway lines. Document 2016 / S 127-228076. In: Supplement to the Electronic Official Journal of the European Union . July 5, 2016. Retrieved July 9, 2016 .
  22. ↑ State parliament members Rivoir and Binder disagree . In: Südwest Presse from August 12, 2016.