Uetliberg tunnel

from Wikipedia, the free encyclopedia
Uetliberg tunnel
Uetliberg tunnel
Northern tube of the Uetliberg tunnel (towards Basel)
use Motorway tunnel
traffic connection A4
place Uetliberg
length 4420 mdep1
vehicles per day 59,708
Number of tubes 2
cross-section 143-160
Largest coverage 320 m
construction
Client Federal Roads Office
building-costs 4 billion CHF
start of building October 2000
completion 2007
business
release May 4, 2009
location
Uetliberg Tunnel (City of Zurich)
Red pog.svg
Red pog.svg
Coordinates
Tub bottom 677251  /  244243
Gäniloo 681335  /  244264

The Uetliberg tunnel is a section of the A3 motorway south of Zurich in Switzerland and has been connecting the Zurich-West motorway junctions near Birmensdorf and Zurich-South in Wollishofen in a direct line since May 4, 2009 . The two tubes cross the Uetliberg , Zurich's local mountain . The tunnel is intended above all the previous Westtangente and the Birmensdorferstrasse from heavy through traffic relief and closes an important gap in the Swiss road network.

Construction

During the construction of the Uetliberg Tunnel, various excavation methods were used to drill through the highly differentiating rock, such as traditional blasting , but also driving using a tunnel boring machine (TBM), a tunnel boring widening machine (TBE) using undercut technology, dome jacking and in the Reppischtal area in opencast mining. The excavated volume was 1.7 million m³.

execution

Höckler , on the right the east portal "Gänziloo"

The tunnel consists of two separate tubes in an east-west direction. Each tube has two lanes and a hard shoulder. Cross connections every 300 m serve as escape routes into the other tube, which is why there was no need for a safety tunnel. In addition to the usual carriageway crossings at the tunnel portals, the two tubes are connected to each other in both directions by means of a transfer tunnel under the Reppischtal ventilation center so that traffic can be directed into the other tube in the event of a fire or construction site. The tubes have a gradient of 1.6% towards the east.

Accompanying traffic measures

For the opening of the Uetliberg tunnel, the city of Zurich implemented a number of accompanying measures, which were primarily intended to effectively relieve Zurich city ​​districts 3 and 4 of through traffic. By the summer of 2010, for example, Sihlfeldstrasse and Weststrasse had been converted back into neighborhood streets by means of structural measures, thereby relieving 90% of traffic.

Web links

Commons : Uetlibergtunnel  - collection of pictures, videos and audio files

Individual evidence

  1. 2011 annual evaluation of measuring point no. 577 Uetlibergtunnel Mitte (motorway) . Federal Roads Office , April 10, 2012, archived from the original on March 12, 2016 ; Retrieved December 23, 2012 .
  2. Characteristics. In: Uetlibergtunnel.ch. Amberg Engineering, accessed December 22, 2015 .