Idstein tunnel

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Idstein tunnel
Idstein tunnel / Idstein tunnel
Idstein tunnel
The north portal of the Idstein tunnel with ICE 3
use Railway tunnel
traffic connection High-speed route Cologne – Rhine / Main
place Idstein
length 2069 m
Number of tubes 1
cross-section 92 m²
construction
start of building 1998
planner Deutsche Bahn
business
operator DB network
release 2002
location
Idstein tunnel (Hesse)
Red pog.svg
Red pog.svg
Coordinates
North portal 50 ° 13 ′ 6 ″  N , 8 ° 15 ′ 9 ″  E
South portal 50 ° 12 ′ 0 ″  N , 8 ° 15 ′ 20 ″  E
The south portal with A3 and noise protection wall

The Idstein Tunnel (also: Tunnel Idstein , Idsteiner Tunnel ) is a 2069 m long tunnel on the high-speed route Cologne – Rhine / Main . It runs on the western edge of the city of Idstein and therefore bears his name. The building serves to protect the city ​​with 25,000 inhabitants from noise .

The tunnel accommodates two slab tracks that can be driven on as planned at 300 km / h.

course

The north portal is at kilometer 133.8 and the south portal at 135.8.

The tunnel runs roughly parallel to Federal Motorway 3 , a few meters to the west , largely along an industrial park . It passes under a residential street , the 3274 state road and the 275 federal road . In the southern section, the distance between the motorway edge and the shoring edge is only around 20 meters.

To the north of the tunnel there is a retaining wall 90 meters long and 201 m in the south.

The route runs from the north portal to the center, initially in a right curve, then straight. The route runs in a left curve from the center to the south portal. The gradient of the route rises towards the middle of the tunnel and falls again towards the south portal.

The tunnel has two emergency exits that come to the surface in a shaft 14 m high.

history

planning

In the regional planning procedure initiated on February 26, 1992 for the Hessian area of ​​the new line , an eastern and western variant was introduced in the Idstein area. The east variant proposed by the Federal Railroad at the time essentially corresponds to the route that was actually implemented and envisaged a length of 1,750 m for the Idstein tunnel. The Idstein West variant , on the other hand, would have run west of the A3 from Wörsdorf, would have crossed state road 3274 at the level of the Idstein motorway junction and would then have run in a 700 m long tunnel through the Roßberg. After crossing the Daisbach and the L 3273, it would flow into a 1,930 m long Niedernhausen tunnel, the south portal of which, as in the east variant, would be in the Königshofen area west of the motorway. From the point of view of the Federal Railroad, the east variant was advantageous compared to the west variant due to lower land consumption, less excess mass, ecological advantages and better integration into the landscape.

After intensive discussions, the structure was extended for reasons of noise protection. At the end of 1995, the planned length of the structure was 2069 m.

The tunnel is located in the planning approval section 32.3 of the new line (city / district Idstein), for which the planning approval decision was issued on September 23, 1996.

construction

In September 1997 the first explosions for the tunnel were set off.

The tunnel was pierced and christened on April 29, 1998. The tunnel sponsorship had Brigitte Mueller, the wife of the mayor Idsteiner adopted. The breakthrough was planned for August 1999, the completion of the shell for December 1999, the interior work should be completed in April 2000.

385 m were built using the mining method, the rest using the open construction method. In the open area, for the most part, multiple anchored bored pile walls were used, in the mining area an excavator drive with loosening blasts was used .

Despite the largely open construction, which is usually carried out with a rectangular cross-section , the tunnel was built with a continuous round cross-section in order to avoid aerodynamically unfavorable changes in cross-section. Only below the center of the circle were the floors of the mined and open tunnel formed differently. The clear cross-sectional area over the upper edge of the rail is 92 m², the inner radius is 6.85 m.

In the southern sector was by residents of the framework plan approval phase as a compensatory measure a noise barrier fought on the tube. This is supposed to keep the vehicle noise from the highway away from the city. The several meters high covering of the tunnel tube led to higher loads, which was taken into account by reinforced reinforcement . In the northern area of ​​the tunnel, however, the original condition of the site was restored.

The breakthrough in the mining part was celebrated in July 1998.

A total of 5,800 running meters of large bored piles , 9,800 running meters of shoring girders , 3,000 temporary anchors , 11,000 m³ of shotcrete and 14,000 m² of wood infill were used in the area created using the open construction method . In the mining section, 5,600 m³ of shotcrete, 6,200 rock anchors and 9,000 spikes were used to manufacture the outer shell. A total of 600,000 m³ of earth was excavated in the open area, of which 400,000 m³ were backfilled after the construction pits had been completed, the rest was used for dams and walls. 55,000 m³ of tunnel excavation from the mined area were used for dams along the open route .

The tunnel shell was manufactured in blocks of ten meters in length from waterproof concrete without any additional external covering . A total of 75,000 m³ of concrete and 9,500 t of steel were used.

The construction work was completed in spring 2000.

During the construction phase, one auxiliary bridge each led a road at the Idstein motorway junction and a residential road across the excavation pit.

The company Walter Bau AG was commissioned with the implementation .

Installation

In mid-2000, more than 1000 people visited the construction site as part of an open tunnel day.

On December 7, 2001, a rescue exercise with 300 "travelers" took place in the tunnel, 270 of whom were assumed to be capable of self-rescue . A total of around 500 emergency services were involved. The main aim of the exercise was to test a fire-fighting concept that had been developed in Hesse by the New Line Working Group since October 1997 .

Web links

Individual evidence

  1. Without author: Ascent and descent on a new route . In: Eisenbahn Journal , special edition 3/2002, ISBN 3-89610-095-5 , pp. 67–77.
  2. a b c d e f g h i Christian Pöppinghaus: Calming prospects . In: DB ProjektBau GmbH, Frankfurt (ed.): New Cologne – Rhine / Main line. Bridges and tunnels . without ISBN. Pp. 71-75
  3. Wilhelmd Blind: Cologne-Frankfurt (M) in an hour . In: Railway technical review . 41, No. 7/8, July / August 1992, pp. 475-484.
  4. ^ New line Cologne – Rhine / Main - project group NBS Frankfurt am Main of the Bahnbauzentrale (publisher): New line Cologne – Rhine / Main in Hesse: Section Hünstetten – Wiesbaden / Hattersheim . Leporello (eight A4 pages), Frankfurt, approx. 1992.
  5. a b Commissioning and groundbreaking in Montabaur; Waste wood as a valuable living space; 3,500 visitors in Idstein and Wallau . In: On the topic , ZDB -ID 2115698-0 , edition 4/2000, August 2000, p. 8 f.
  6. ^ Deutsche Bahn AG, network division, project management for the Cologne – Rhein / Main line (publisher): route map for the new Cologne-Rhein / Main line . Map from November 1995, Frankfurt 1995
  7. ^ Announcement of the Cologne – Rhein / Main line: plan approval . In: Railway technical review . 45, No. 12, 1996, p. 819.
  8. a b c d Cologne / Bonn Airport; Mouse guest; Successful completion of the bow; Limburg ICE train station; Idstein tunnel . In: On the subject , ZDB -ID 2115698-0 , edition 3/2000, June 2000, pp. 7-9.
  9. a b ICE era began five years ago ( Memento from September 27, 2007 in the Internet Archive ). In: Wiesbadener Tagblatt from August 1, 2007
  10. ^ DB Project Cologne – Rhein / Main (Ed.): New Cologne – Rhein / Main line. Start of construction of the Idstein tunnel . Press release from April 29, 1998.
  11. A minor disaster . In: Frankfurter Rundschau , No. 287, 2001, December 10, 2001, p. 24
  12. Wolfgang Schulz: Tunnel exercise on the new ICE line Cologne-Rhine / Main . In: Civil Protection , 2002, p 24, ISSN  0173 to 7872 .