Doka handles Austria tunnel upgrade

A key section of the busy A12 route in Austria’s Tyrol area has been refurbished with help from formwork specialist Doka. The company devised a formwork traveller featuring steel panels so as to help build a new inner shell for the twin-tube Senftenberg Gallery tunnel. The job involved 36 pouring sections for work on the first tube followed by a break to accommodate winter tourist travel. After some minor modifications the same formwork traveller was then re-used for another pouring a further 36 sections on
January 4, 2017 Read time: 2 mins
Doka’s formwork has helped revamp a twin tube tunnel on Austria’s A12 highway
A key section of the busy A12 route in Austria’s Tyrol area has been refurbished with help from formwork specialist 203 Doka. The company devised a formwork traveller featuring steel panels so as to help build a new inner shell for the twin-tube Senftenberg Gallery tunnel. The job involved 36 pouring sections for work on the first tube followed by a break to accommodate winter tourist travel. After some minor modifications the same formwork traveller was then re-used for another pouring a further 36 sections on the second tube.

The job involved the renovation of the twin-tube highway tunnel with an existing centre wall and V-shaped columns. The 360m long tunnel sections are 10m wide by 6.5m high and the work was carried out by contractor 945 Strabag.

Formwork sheet made of steel panels was employed as this ensured a long lifespan and a high-grade concrete finish, allowing the pouring of 72 sections without replacing the panels. The formwork traveller met key requirements for the work and was pre-assembled by Doka, cutting costs for the contractor.
Road Structures

For more information on companies in this article

Related Content

  • Meva’s Mammut 350 formwork makes the difference for Neckar viaduct
    April 19, 2018
    Formwork specialist Meva is helping replace the longest motorway bridge, the Neckar River viaduct in Germany’s south-west state Baden-Wuerttemberg Work on the 1.3km Neckar viaduct, part of the A6 motorway at Heilbronn, should be finished by 2022. It is part of the A6 expansion project between the Weinberger junction and Wiesloch/Rauenberg. The project is officially the new Neckar viaduct BAB 6 at Heilbronn. Federal Motorway 6, the A6, is also known as the BAB 6. The 477km motorway starts at the French b
    Read More
  • Pūhoi-to-Warkworth motorway project
    September 25, 2020
    After a hiatus because of the COVID-19 lockdown, work has restarted on what will be one of New Zealand’s most visually impressive motorways. Andrew Thackwray, senior manager for project delivery for Waka Kotahi, the New Zealand Transport Agency, explains
    Read More
  • Alsina’s Alsipercha system has a handle on workers at risk of falling
    May 23, 2016
    Alsipercha is a “personal fall arrest system” from Spanish firm Alsina Group and consists of a steel body and a self-retractable lifeline. The retractable lifeline locks when an acceleration occurs during a fall, similar to the seatbelt of a car. It provides complete freedom of movement - 360º - by rotating on its axis, allowing the worker to safely perform operations at height. The Alsipercha is composed of six elements: the system itself, a retractable device, a shock-absorbing device, a retractabl
    Read More
  • New concrete testing technologies improve speed, safety and quality
    July 8, 2016
    Developments in data processing and management are revolutionising the way concrete strengths can be measured and used to improve efficiencies - Kristina Smith reports on two new technologies A new system that uses thermal imaging to measure the strength of sprayed concrete tunnel linings is being trialled for the first time in London. The brainchild of Dr Benoit Jones, managing director of Inbye Engineering, the technique could lead to improvements in safety, quality and – in the longer run – productivi
    Read More

Highlighted Content