Austria

Tunnel Boring Machine started Work on Contract Section 2.1 of the Semmering Base Tunnel

The Semmering Base Tunnel (SBT) is currently under construction and is one of the most important major infrastructure projects in the heart of Europe, forming part of the new Austrian Southern Railway – the central axis on the trans-European route from the Baltic Sea to the Adriatic. With a total length of 27.3 km, the SBT connects Lower Austria and Styria. Under the aegis of Implenia, a joint venture commissioned by ÖBB is constructing the roughly 13 km long middle section (contract section 2.1) known as the “Fröschnitzgraben” tunnel.

The majority of the SBT and all of its entrances are being constructed using the traditional drill-and-blast method. The geology dictates where tunnel boring machines (TBMs) need to be used. The first of two TBMs began work on July, 13, in the “Fröschnitzgraben” tunnel.

Further down the line, two 120 m long, 2 500-tonne machines – one for each tube in the tunnel – will drill their way through around 9 km of mountain from Fröschnitzgraben (Styria) towards Gloggnitz. The TBMs were built in France and travelled 1000 km to get to Semmering before being put to work. For space reasons, the two boring machines are being delivered to the site separately in individual parts and assembled 400 m underground.

Austria’s Transport Minister Norbert Hofer, Kurt Bodewig, EU Coordinator for the Baltic-Adriatic Corridor, Styrian Governor Hermann Schützenhöfer, Lower Austrian Transport Secretary Ludwig Schleritzko, Implenia Infrastructure Business Unit Head René Kotacka and Chairman of the ÖBB Board of Management Andreas Matthä were thoroughly impressed with the celebrations they attended to mark the “switching on” of the first machine. The VIP guests emphasised the added value which the construction project is injecting into the economy and its significance for the future of European and Austrian transport infrastructure.

Related articles:

Issue 2018-04 Austria

Semmering Base Tunnel: TBM Start in Contract Section 2.1

The Semmering Base Tunnel (SBT) is currently under construction and is one of the most important major infrastructure projects in the heart of Europe, forming part of the new Austrian Southern Railway...

more
Issue 2017-06 Austria

Semmering Base Tunnel: Last Section under Construction

The 27.3 km long new Semmering Base Tunnel is the key structure of the new Austrian Südbahn line. On 30 June 2017, tunnelling works started on the third and last tunnel section, Grautschenhof. The...

more
Issue 2015-05 Austria

Semmering Base Tunnel: Start of Work on the Tunnel Shafts at Lot 2.1, Fröschnitzgraben

The two shafts that will allow tunnelling to proceed towards Gloggnitz and Mürzzuschlag are now being built at Lot 2.1 of the Semmering Base Tunnel in Fröschnitzgraben, Austria. At the end of July...

more
Issue 2015-04 Austria

Semmering Base Tunnel: Implenia, Hochtief and Thyssen to build Tunnel Gloggnitz

At the Semmering Base Tunnel (SBT) ÖBB-Infrastruktur AG has awarded a joint venture of Implenia, Hochtief Infrastructure Austria and Thyssen Schachtbau the contract for section SBT1.1 „Tunnel...

more
Issue 2011-07 Austria

Semmering Base Tunnel: Construction approved

The new roughly 27 km long Semmering Base Tunnel can now be built for Austria’s supreme railway authority confirmed its environmental compatibility on May 30, exactly a year after the relevant...

more