Auetal bridge

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Coordinates: 51 ° 50 ′ 15 ″  N , 9 ° 59 ′ 9 ″  E

Auetal bridge
Auetal bridge
An ICE 1 passes the Auetalbrücke (view in northeast direction)
Convicted
High- speed line from Hanover to Würzburg
place Einbeck
construction Prestressed concrete box
girder bridge
overall length 1056 m
width 14.3 m
Longest span 44 m
Construction height 4.0 m
height 38 m
start of building 1984
completion 1987
location
Auetalbrücke (Lower Saxony)
Auetal bridge

The Auetalbrücke is a double-track railway overpass on the high-speed line Hanover – Würzburg at 64.4 km and at 1056 meters the longest bridge on the northern section of the line.

location

The girder bridge is located southeast of Kreiensen and spans the valley of the Aue , a 19-kilometer tributary of the Leine , the 592 road from Kreiensen- Billerbeck to Kalefeld , the Osterode – Kreiensen railway and a farm road. The track is at a maximum height of 38 m above the valley floor.

To the north, after a dam and an incision, the Hopfenberg tunnel joins. To the south follows an up to 9.50 m high dam, which merges into a one kilometer long and up to 20 m deep and up to 125 m wide incision. This is followed by the Sohlberg tunnel to the south after a short dam .

history

The structure was planned to be 1056 m long as early as 1982.

In the planning phase, the bridge was completely in the 3.45 km long plan approval section 2.13 of the new line.

The railway overpass was built between August 1984 and 1987.

Cross section of the superstructure
View of the pillars, substructure and superstructure

The bridge superstructure, curved to the right in the ground plan, consists of a chain of 24  single-span girders . This enables individual bridge segments to be replaced later. The cross-sectional shape is a single-cell reinforced concrete hollow box with inclined webs, prestressed in the longitudinal direction . In addition, the deck is prestressed in the transverse direction. The span is uniformly 44 meters with a superstructure width of 14.3 meters. The constant height of 4.0 meters is relatively high due to the required rigidity for low deflection. The 23 reinforced concrete piers have a cross-section width of 6 meters at the pier head and are 4 meters thick there, as the arrangement of four bearings is required for the single-span girders . Except for the abutment South, which after a soil improvement with gravel tamped columns shallow foundation was, all founding members have a deep foundation with Frankipfählen .

For the foundation of the foundations, coarse-grain pillars, which should be shaken into the subsoil, or in-situ concrete driven piles were discussed. A side parapet serves as noise protection. The district of Northeim and the municipality of Kreiensen were involved in the design of the pillars and the noise protection measures.

literature

  • Knut Reimers and Wilhelm Linkerhägner: Paths into the future. New construction and expansion lines of the DB . Hestra Verlag Darmstadt, 1987. ISBN 3-7771-0200-8

Individual evidence

  1. ↑ a b c DB project group Hanover-Würzburg (North) (ed.): Billerbeck, Haieshausen, Opperhausen , brochure (12 pages, folded) as of July 1, 1984.
  2. ^ DB project group Hanover-Würzburg (North) (Ed.): New line Hanover-Würzburg: Sehlem, Harbarnsen, Netze . Leporello (14 pages) as of September 1, 1982.
  3. ^ A b Deutsche Bundesbahn, project group Hanover – Würzburg North of the Federal Railway Directorate Hanover: The new Hanover – Würzburg line. The Hanover – Northeim section . Brochure (43 pages) from 1984, p. 37 f.

Web links

Commons : Auetalbrücke  - collection of images, videos and audio files