Saale-Elster valley bridge

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Coordinates: 51 ° 24 ′ 40 ″  N , 11 ° 58 ′ 57 ″  E

Saale-Elster valley bridge
Saale-Elster valley bridge
Convicted New Erfurt – Leipzig / Halle line
Subjugated Saale , White Elster
place Halle (Saale) , Schkopau
construction Prestressed concrete box
girder bridge
overall length 6465 m + 2112 m
width 13.9 m
Longest span 70 m / 110 m
Construction height 4.0 m
height 21 m
building-costs € 222 million
start of building 2006
completion 2013
location
Saale-Elster valley bridge (Saxony-Anhalt)
Saale-Elster valley bridge

The Saale-Elster valley bridge is a railway overpass on the new Erfurt – Leipzig / Halle line . It was built between 2006 and 2013 and, at 6,465 m, is the longest bridge structure in Germany and the longest long-distance railway bridge in Europe . As a special feature, there is a branch on the bridge structure, which is 2112 m long.

The construction of the planning approval section 2.5, to which the bridge belongs, was awarded in mid-2006 for 130 million euros (excluding VAT). In July 2016, the costs, including price increases, were 222 million euros (excluding VAT).

course

The finished east abutment with a bridge to the west
West end of the bridge on Rattmannsdorfer See
Ramp of the new line on the bridge branch in / from the direction of Erfurt (Ammendorf flyover) (August 2011)

The new line crosses the meadow landscape of the Saale and the White Elster south of Halle (Saale) with several nature reserves, including an FFH area , a bird sanctuary and a water protection zone III of the Beesen waterworks . Most of the bridge route runs parallel to an existing overhead line .

The bridge begins north of Korbetha at NBS kilometer 272,337 on Rattmannsdorfer See , which it partially crosses on the southern bank. In the following, the state road  171 from Schkopau to Hohenweiden and the Saale will be spanned, before the branch to the north towards Halle at the junction Planena at NBS kilometers 274.384. This is done with a flyover structure - a 110 m long arched bridge - which leads the main line at a height of 21 m over the Erfurt / Halle branch track. Then the Steinlache , the Bundesstraße 91 and the parallel tram line Halle-Ammendorf-Bad Dürrenberg , the Thuringian Railway (Weißenfels-Halle), the Markgraben, the White Elster , the Landesstraße 170 and the Ammendorf-Luppenau railway line (works of the Mitteldeutschen Umwelt- und Entsorgungs GmbH) crosses and touches the Reide before the bridge ends at NBS kilometer 278.802 after 6,465 m north of Döllnitz . The branching bridge to Halle is 2112 m long. Starting from the Planena junction, it spans, among other things, the Steinlache, the Halle-Beesen waterworks, the B 91 and the parallel tram route, the Stille Elster and the White Elster and ends in front of the Halle-Ammendorf train station . There, the line, with an adjoining flyover structure, joins the Thuringian Railway from Weißenfels.

construction

Standard cross-section superstructure
Erection of the bridge piers axis 128 and 129 near the east abutment
Saale-Elster valley bridge in the area of ​​the Saale, axes 41–49
Bridge spans the White Elster

The prestressed concrete bridge has 208 pillars. In the normal range, the structure consists of a chain of two- span girders with a construction height of 4.0 m and a span of 44 m. In sections with longer spans, the haunched three- span girder is the building system in the longitudinal direction, in the overpass area a steel arched bridge . In the standard cross-section, the joint superstructure of both tracks consists of a single-cell, 13.9 m wide reinforced concrete box girder with inclined webs, prestressed in the longitudinal direction . Running at an average height of 15 m, the bridge is not a filigree construction due to the wide pillars, the narrow pillars and the high superstructure.

The continuous main bridge is double-track and has a length of 6465 meters, which consists of 143 spans with lengths of 26 × 44 m - 62 m - 68 m - 62 m - 33 × 44 m - 43 m - 115 m - 43 m - 7 × 44 m - 53 m - 70 m - 53 m - 29 × 44 m - 48 m - 6 × 40 m - 19 × 44 m - 60 m - 48 m - 11 × 44 m composed. The branching bridge construction of the Erfurt – Halle main line has a length of 2149 m, the opposite track is 9 m shorter. In the unwinding area it consists of two single-track, 8.9 m wide superstructures, which are composed of 22 fields with lengths of 44 m each or with lengths of 20 × 44 m - 35 m - 44 m. The adjoining section of the line has a double-track, 13.4 m wide superstructure of 1181 m length, which consists of 27 fields with lengths of 26 × 44 m - 37 m.

The pillars usually have a rectangular reinforced concrete hollow cross-section with broken corners. With a wall thickness of 30 cm, the length in the transverse direction of the bridge is 6.0 m and the width 2.7 m for fixed pillars where there is only one row of bearings, and 3.5 m for dividing pillars with two rows of bearings. The pillars are founded flat in a watertight sheet pile wall box, the sheet pile walls and the reinforced concrete foundations being positively connected to one another, thus providing the load-bearing behavior of a deep foundation . This also prevents contamination of the groundwater. The sheet piling must be sufficiently high to when the construction of the foundations flood avoid being flooded.

The steel arched bridge in the overpass area is 110 m long, with 2.5 m long transition structures on both sides . It has two tracks and weighs a total of 1420 t.

The design speed of the main structure is 300 km / h with a track spacing of 4.5 m, the branch structure is designed for 160 km / h with a track spacing of 4.0 m. The introduction in the Ammendorf area is also designed for 160 km / h.

A slab track , which road vehicles can drive on, is provided as the superstructure . The road access to the northern abutment in Halle-Ammendorf is to be via a four-span, 64 m long reinforced concrete bridge that has yet to be built.

Noise protection walls on both sides with a height of 2.4 m are intended for the branch structure in front of Ammendorf over a length of 213 m, with the main structure it is more than 50% of the length.

history

planning

In the Saale-Elster-Aue area , due to its size, the periodic floods and the associated high biodiversity, part of it was temporarily placed under nature protection in September 1992 in accordance with the State Nature Conservation Act of Saxony-Anhalt and in 1998 as a nature reserve " Saale-Elster-Aue Hall ”.

The crossing of the Saale-Elster-Aue was already planned in the early 1993 variant 1 of the new line, which had been registered as a preferred variant for the Federal Transport Infrastructure Plan 1992 and the regional planning procedure . The focus of the ecological impact was on the construction phase, since according to the planning company Bahnbau Deutsche Einheit a free ecological interchangeability would be guaranteed in the operating phase . Various previous damage to the area had been explored using infrared images, while the actual biotopes were not affected by the structure. Environmental associations, on the other hand, criticized the crossing of one of the largest and most important floodplain nature reserves in Germany and one of the largest contiguous reed areas in Saxony-Anhalt. Former individual conservation areas (Kollenbeyser Holz, Döllnitzer Schilf and Burgholz) have grown together on an area of ​​around 800 ha. According to a report by the Nuremberg planning office Grebe, the floodplain (as of 1993) is the habitat for 99 breeding bird species. The bridge would cut this area in its core zone into two areas.

The bridge was not provided for in the other four variants. Small-scale alternatives to the bridge, which were proposed by the city of Halle, among others, would have proven to be less favorable than variant 1, according to the developer, after weighing all the factors.

According to the planning status from 1994, the structure should be around 6.1 km long and up to 22 m above the site. A partial front-of-the-head construction with a standard spacing of 44 m was already planned. In mid-1994, the building was calculated at 410 million D-Marks net. Another 37 million D-Marks (net) should go to the technical equipment.

According to the planning status from mid-1995, the new section structure, now 6,465 m long and up to 25 m high, should be located between construction kilometers 81.21 and 87.68. In the southern part of the bridge, a track change (four points) was to be set up between the two main tracks. The planena junction (in the direction of Halle) was planned to be at kilometer 83.25. To the north - at km 90.0 - the Osendorf transfer point was to follow. The junction to Halle should be 2112 m long and up to 20 m high.

The structure is part of the planning approval section 2.5 of the new line. Sixteen variants were considered south of Halle. The planning approval decision for this section was issued on June 25, 1996. According to the planning status of 1997, an expansion to 200 km / h was planned for the section between the threading in at Schkopau and Halle.

After the planning approval, the project was initially not implemented due to a lack of funding. In 2004, the draft planning was largely adapted to the guidelines and standards applicable at the time.

In September 2014, as part of the 10th change to the plan in Section 2.5, Deutsche Bahn applied for the planned Planena transfer point to be omitted.

construction

Extension of the route to Halle near Planena
The elevated construction road in the area of ​​the nature reserve
Feed armor for front-head construction
Assembly auxiliary construction for tied arch bridge
South of Osendorf with a view of the Schkopau power plant

The construction of the superstructure was usually carried out with an advancing scaffolding , with up to seven units being used; stationary falsework was used for the branch structure and the intersection with Bundesstraße 91 and the Saale .

Since no construction site access is permitted in two sections, the main bridge in the area of ​​the White Elster was built over 16 fields over a length of 704 m with a so-called front-end construction method . From NBS kilometers 277.4 onwards, sheet piling boxes , flat foundations and piers were first built from a cantilevered working platform and then the superstructure. This construction method was first used here in Germany. The bridge sections were erected every five weeks in normal shift operation, the relocation of the scaffolding for the head construction took seven working days. The scaffolding had a length of 99.4 m. The first pillar created again in conventional construction coordinate is 51 ° 24 '58 "  N , 12 ° 0' 51.8"  O . In the section in front of it in the water protection zone, an 816 m long 1.5 m high elevated site road with a separate drainage system was built in advance (between the coordinates 51 ° 24 ′ 41.9 ″  N , 11 ° 59 ′ 37.9 ″  E and 51 ° 24 ′ 49 "  N , 12 ° 0 ′ 18.4"  E ). In the case of the branch bridge, the front-end construction was planned for the last 390 m in the area of ​​the White Elster in front of the Halle abutment.

A total of around 190,000 m³ of concrete was used for the entire bridge construction.

During the breeding season in the bird sanctuary, construction work had to be suspended for several months in spring.

In the western section of the bridge there are seven pillars in the approximately 5 m deep Rattmannsdorfer See . In the first step, a sheet pile box with a floor plan of 8 m × 10 m was erected from a stilt pontoon . The second step was the excavation, then the installation of tension piles to secure buoyancy and finally the concreting of the 1.5 m thick underwater concrete base. The soil in the sheet pile boxes showed contamination by mercury during excavation . Disposal required a lot of effort, especially in terms of occupational safety.

On March 3, 2010 at 10:25 am, the eastern advancing armature for the front-end construction with the ram excavator on the work platform collapsed in the area of ​​the Döllnitzer reed during the scheduled advancement. Nine construction workers were injured. Construction work resumed at the beginning of May 2010. First, the crashed steel structure was salvaged. The accident caused a delay of around 18 months in the affected section. A change in the construction process for the entire bridge project made it possible to partially make up for the delay at increased costs.

Another accident occurred on June 29, 2010 when a 60-tonne crawler crane overturned while building sheet piling. The crane operator was injured.

Between July 4 and August 1, 2010, the new line crossing the bridge was integrated into the Halle-Ammendorf train station as part of a full closure. A total of 1145 m of track and nine points were installed. Construction work was interrupted during floods between 2011 and 2013.

On May 15, 2012 the concreting of the last pillar of the Saale-Elster valley bridge was celebrated. The dividing pillar is at the Planena junction and later carries the 110 m long arched arch bridge on one side over the extension of the branch to Halle. A total of 158,000 m³ of concrete for the superstructures and substructures, 28,300 t of reinforcing steel and 13,000 t of sheet piles were used for the bridge.

The assembly of the tied arch bridge began in summer 2012. For this purpose, an auxiliary construction was set up in advance at the installation site, on which the prefabricated elements are assembled. These were delivered with several heavy loads until the end of 2012 and some of them were lifted in using a 1200-tonne mobile crane.

On October 16, 2012, the last gap in the concrete superstructure was ceremoniously closed, so that the only thing missing to finally close the gap between the abutments in Erfurt and Leipzig was the completion of the steel arched bridge. On June 21, 2013, as a symbolic completion of the structural work, the last weld seam of the arch bridge was ceremonially drawn. According to Deutsche Bahn, more than 3,000 people visited the building on a bridge day at the end of July 2013.

Installation of the slab track began in August 2013. In June 2015, it became known that the slab track laid on the Saale-Elster valley bridge and several other bridges did not have a type approval and the Federal Railway Authority is therefore demanding proof of equivalent safety.

The bridge is monitored at several hundred measuring points .

On August 17, 2014, two 145-meter-long freight trains, each consisting of ten open bulk goods wagons, each with four axles and 22.5 t axle load, as well as diesel locomotives at the ends of the train, frequented the structure. For measurements on the structure, the trains simulated the UIC 71 load pattern with a load of 80 kN per meter.

On May 9, 2015, a large-scale exercise with 650 participants and 13 aid organizations took place on the bridge.

Installation

Regular operations began with the timetable change on December 13, 2015.

business

Branches at Planena

In October 2016, Deutsche Bahn applied for the construction of two rescue areas in the western and eastern areas of the bridge.

See also

Web links

Commons : Saale-Elster-Talbrücke  - collection of images, videos and audio files

Individual evidence

  1. ↑ a b c d Last weld for the arched bridge of the Saale-Elster valley bridge near Halle (Saale). DB Mobility Logistics AG, June 21, 2013, archived from the original on September 26, 2013 ; Retrieved June 21, 2013 .
  2. ^ A b Germany-Leipzig: Construction work for bridges. Document 2016 / S 141-255053. In: Supplement to the Electronic Official Journal of the European Union . July 23, 2016. Retrieved July 24, 2016 .
  3. ↑ Bärbel Jossunek, Vasco P. Kolmorgen, Alexander Wolf: route brochure New Erfurt - Leipzig / Halle. (PDF) DB Netz , August 13, 2015, p. 175 , archived from the original on February 14, 2016 ; accessed on August 15, 2015 . P. 43
  4. ↑ a b The last pillar of the Saale-Elster valley bridge was concreted near Halle. Deutsche Bahn AG, May 15, 2012, archived from the original on January 21, 2013 ; Retrieved May 17, 2012 .
  5. ↑ a b c The end of the arch in the final steel construction in the course of the Saale-Elster valley bridge near Halle. www.vde8.de , February 15, 2013, accessed on February 18, 2013 .
  6. ↑ a b c d Marcus Schenkel: Transport projects German unity No. 8.2, new railway line Erfurt-Leipzig / Halle: Saale-Elster valley bridge . In: ZEVrail, Glaser's Annalen . 131, No. 8, 2007, pp. 312-328.
  7. ↑ Pillar sketch ( memento of March 16, 2015 in the Internet Archive ) on bastellen-doku.info
  8. ↑ a b Wolfgang Feldwisch, Olaf Drescher: The realization of the new and upgraded line Nuremberg - Erfurt - Leipzig / Halle . In: Railway technical review . 56, No. 9, 2007, pp. 502-505.
  9. ↑ Deutsche Bahn AG (ed.): Integration of the new line in the Halle urban area . Press release from March 25, 2011.
  10. ^ D-Leipzig: Construction work for bridges . Document 2012 / S 162-270353 of August 24, 2012 in the supplement to the Electronic Official Journal of the European Union .
  11. ^ A b c Planungsgesellschaft Bahnbau Deutsche Einheit , Projektzentrum Leipzig (ed.): Transport project German Unity - Rail No. 8: ABS / NBS Nuremberg - Erfurt - Halle / Leipzig - Berlin: Section Erfurt - Leipzig / Halle: Figures and facts . 20-page brochure, Leipzig, August 1995, pp. 8 f., 13, 16.
  12. ↑ Wolfgang Watzlaw: Planungsbüro Bahnbau: Also the concerns of the ecology considered . In: Alliance 90 / Greens parliamentary group in the Saxony-Anhalt state parliament (ed.): In the intoxication of speed . Halle (Saale), 1993, pp. 11-14.
  13. ↑ The environmental groups: Einmündigunge rejection of Option 1 . In: Alliance 90 / Greens parliamentary group in the Saxony-Anhalt state parliament (ed.): In the intoxication of speed . Halle (Saale), 1993, pp. 25-31.
  14. ↑ a b c Planungsgesellschaft Bahnbau Deutsche Einheit (Ed.): Transport project German Unity Rail No. 8: ABS / NBS Nuremberg-Erfurt-HalleLeipzigBerlin: Erfurt - Leipzig / Halle section: Planning status June 1994 . Brochure, Leipzig, 1994.
  15. ^ Thomas Schubert, Frank Kniestedt: First course set: new railway line Erfurt-Leipzig / Halle . In: Baukultur , Heft 3, 1994, pp. 20-24, ISSN  0722-3099 .
  16. ↑ a b c d Michael Felgner: The Saale-Elster valley bridge - a superlative construction project . In: Your train . No. 4 , 2014, ISSN  0948-7263 , p. 10-17 .
  17. ^ Federal Ministry of Transport: Transport projects German unity. Status: 1997 . Brochure (50 A4 pages), Bonn 1997, p. 20.
  18. ↑ Federal Railway Office, Halle branch: Finding that an environmental impact assessment (EIA) has not been carried out in accordance with Section 3a of the Environmental Impact Assessment Act (UVPG) for the 10th change to the plan for the "New and upgraded Erfurt - Leipzig / Halle line, plan approval section 2" ( Memento from 12. November 2014 in the Internet Archive ). Letter with reference number 56110-561ppn / 001-2316 # 04 dated November 7, 2014.
  19. ^ New line Erfurt – Leipzig / Halle: railway overpass Saale-Elster-Talbrücke . Brochure from DB ProjektBau GmbH (six pages), January 2010 ( online ; PDF; 2.6 MB).
  20. ↑ a b Through the meadow landscape on stilts . In: Lafarge Forum . No. 2/2011 , p. 12 ff . ( online (PDF; 2.3 MB) [accessed April 24, 2012]).
  21. ↑ Florence Hagemann, Thomas Schwarz: Page no longer available , search in web archives: The longest railway bridge in Germany - building in ecological protected areas . (PDF; 1.3 MB) Schüßler-Plan report, III / 10, p. 17@1@ 2Template: Toter Link / www.schuessler-plan.de
  22. ↑ Michael Felgner, Walter Streit, Manfred Griebel: The construction of the Saale-Elster valley bridge - engineering technology and ecology in harmony . (PDF; 8.9 MB) In: VFSVI Bayern 2009 , p. 21
  23. ^ Accident at the Saale-Elster valley bridge near Halle . Press release on vde8.de from March 4, 2010.
  24. ^ Deutsche Bahn (Ed.): Further construction on the Saale-Elster valley bridge . Press release from May 7, 2010
  25. ↑ Construction worker falls four meters deep . In: Mitteldeutsche Zeitung (online edition), June 30, 2010
  26. ↑ Deutsche Bahn AG (ed.): Complex construction phase for the southern connection of Halle to the new Erfurt-Leipzig / Halle line completed . Press release from August 6, 2010.
  27. ↑ New Erfurt - Leipzig / Halle line in operation . In: Eisenbahn-Revue International . No. 2 , 2016, ISSN  1421-2811 , p. 74-76 .
  28. ↑ Concrete superstructure of the new Saale-Elster valley bridge of the Nuremberg-Berlin project (VDE8) near Halle (Saale) completed. Deutsche Bahn AG, October 16, 2012, archived from the original on January 21, 2013 ; Retrieved October 22, 2012 .
  29. ↑ Brückentag on the Saale-Elster viaduct near Halle attracted over 3,000 visitors ( Memento of 28 October 2014 Internet Archive ), report of 27 July 2013 vde8.de .
  30. ↑ ICE route Munich – Berlin threatens a delay . In: The world . WeltN24 GmbH, June 24, 2015, ISSN  0173-8437 ( online [accessed August 1, 2015]).
  31. ^ D-Leipzig: Equipment for data transmission . Document 2012 / S 196-322709 of October 11, 2012 in the supplement to the Electronic Official Journal of the European Union .
  32. ↑ Scientific measurements with heavy test trains on bridges on the new Erfurt-Leipzig / Halle line (VDE8) . Message of 13 August 2014 vde8.de .
  33. ↑ Determination of the omission of an environmental impact assessment (UVP) according to § 3a Environmental Impact Assessment Act (UVPG) for the 11th change to the project "New and upgraded line Erfurt - Leipzig / Halle, plan approval section 2.5, construction km 80.460 - 88.911 (NBS / ABS) and Construction km 0.000 - 2.423 (branch to Halle) "and for the 21st change of plan of the project" NBS Erfurt - Leipzig / Halle, plan approval section 3.1, construction km 89.00 -99.415 ", rail km 6.779 to 116.427 of the 5919 Eltersdorf line - Leipzig main station in Schkopau and Kabelsket. (PDF) (No longer available online.) Federal Railway Office, formerly in the original ; accessed on January 1, 2016 .  ( Page no longer available , search in web archives )@1@ 2Template: Toter Link / www.eba.bund.de