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Freight train bypass St. Pölten

Austria

Doka delivered several tunnel forming wagons for implementing building lot GUW 3 which is part of the St. Pölten freight train bypass. The goal was to merge the two tubes of the Bründlkapellentunnel into one single-tube tunnel. Since some of these twin-tube sections are separated only by a shared centre wall, the forming wagons were continuously expanded and reconfigured so that in the end it was possible to build 16 additional single-tube sections. The same formwork is then used to build the Radleitentunnel which also consists of a single tube accommodating two tracks.

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Project data

Year of completion
2015
Project duration
18 Months
Country
Austria
Town or city
St. Pölten
Contractors
Strabag AG
Structure
Tunnel
Type of structure
Cut-and-cover tunnel

Bründlkapellentunnel

Construction method
Partially monolithic
Cross-sectional shape
Rectangular
Clear width
5.82 m
Clear height
7.00 m
Formed length of tunnel
822 m
Length of concreting section
24 m
Number of casting sections
57

Radleitentunnel

Construction method
Partially monolithic
Cross-sectional shape
Rectangular
Clear width
11.20 m
Clear height
6.90 m
Formed length of tunnel
390 m
Length of concreting section
24 m
Number of casting sections
17 (tracks 7+9)