Below Hiroshima, Japan, a 13.7 m diameter Robbins Slurry TBM is making steady progress in hard rock. The TBM was assembled onsite for the Hiroshima Expressway Line 5 project. The 1.8 km long tunnel to...
According to Brenner Basistunnelgesellschaft (BBT SE), despite intensive negotiations and efforts in recent months, no agreement could be reached between BBT SE and the contractor, ARGE H51 regarding...
The international competition “ITA Tunnelling Awards”, launched in 2015 by the International Tunnelling and Underground Association (ITA), returns in 2020 for a promising 6th edition. For the lats 5...
Due to the constantly changing situation regarding the coronavirus pandemic and the resultant lack of planning certainty, InnoTrans is to be postponed until 2022. After consulting with international...
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...
