The 27.3 km-long twin-tube Semmering Base Tunnel in Austria has been under construction since 2012. On contract SBT 2.1, a good 8 km of each tube is driven using two shielded hard rock tunnel boring...
In the course of tunnel drives, pre-support measures can be necessary to waterproof or consolidate the surrounding ground. Since such measures can sometimes drastically slow the advance rate, their...
When Bradshaw Construction (BCC) of Eldersburg, Maryland (USA) was awarded the Niles Avenue Sewer Improvement project in Atlanta, they had to decide on the navigation system to be used.Their 72’’...
Stuttgart, the capital of the German state Baden-Württemberg, is in a constant state of change. As a part of the railway construction project “Stuttgart 21”, numerous tunnels are built and several...
The conference Beyond a Tunnel Vision on November 27th 2020 has become a truly European collaboration: instead of meeting each other in The Netherlands, attendees can meet online through sessions that...
The article describes the technical innovative supporting technologies that helped to safely drill and waterproof cross-passages under the sea in a major road tunnel project in Hong Kong, the Tuen...
The Turkish State Railways Directorate (TCDD) is aiming to overhaul the railway connection in southeastern Turkey by providing a shorter, faster route in one of the country’s busiest railway...
As part of the virtual World Tunnel Congress 2020 from 11 to 17 September, the General Assembly of the International Tunnelling and Underground Space Association (ITA) with representatives of the 78...
The 35 km long Lötschberg Base Tunnel is to be extended over a length of 14 km between Ferden and Mitholz according to the will of the Swiss parliament. This would provide 28 km of double-track access...
Since 22 September 2020, hearings on the Fehmarnbelt Tunnel have been underway before the Federal Administrative Court in Leipzig, Germany. „We are pleased that we can now also obtain a final judicial...
