Austria

Brenner Base Tunnel:
Ampass Access Tunnel

Following completion of the 1.8 km long Mauls access tunnel, working is currently forging ahead on the Wolf and Ahrental (2.4 km) access tunnels. After lengthy preparations, work commenced on the 1.4 km long Ampass access tunnel at the beginning of May 2012. Prior to this the portal zone was produced by dig-and-cast for undertunnelling the L283 highway. Two lay-bys and 2 turning recesses were driven on account of the small excavated cross-section. The first 300 m of the tunnel penetrates soft ground, which was consequently tackled by excavators and secured by shotcrete and anchors. Then...

Find out more in

tunnel 07/2012

Find out more in

tunnel 07/2012

Ressort:  Nachrichten | News
subscription Content

Related articles:

Issue 02/2011

Brenner Base Tunnel: Project status

1 Basic concept The Brenner Base Tunnel is a nearly horizontal rail tunnel with 2 parallel tubes. The tunnel runs for 55 km between the railway stations of Innsbruck and Fortezza and is connected...

more
Issue 01/2010 Austria

Brenner Base Tunnel: Stage reached by Construction

1?The TEN Axis from Berlin to Palermo The trans-border European priority scheme TEN Project No. 1 represents a roughly 2,200 km long high-speed railway route between Berlin/D and Palermo/I. Between...

more
Issue 01/2012

Brenner Base Tunnel under Construction

1 General information on the Brenner Base Tunnel The Brenner Base Tunnel, according to the new Strategic planning of TEN-T policy (2014 to 2020), is a part of the future TEN No. 5 corridor Helsinki...

more
Issue 01/2013

Brenner Base Tunnel: Importance of Preliminary Prospection

1 Introduction Preliminary geological prospection and constant prospection during construction are of fundamental importance for proper excavation. Using the example of the Brenner Base Tunnel, this...

more
Issue 05/2023

Brenner Base Tunnel: Sandvik DT923i Used for Drill and Blast Excavation of the Main Tunnels

Around 158 km of the total of approx. 230 km of tunnel had been excavated by the end of August 2023. The BBT consists of two 8.1 m wide single track tunnels that run at a distance of 40–70 m. At...

more