Concrete construction is one of the largest contributors to greenhouse gas emissions in the construction sector. Tunnel structures, which form an essential part of the railway infrastructure, contribute about 9% to the total emissions per track kilometre of Deutsche Bahn and are thus among the most emissions-intensive engineering structures in Germany.
On 14 February 2025, the two tunnel boring machines (TBMs) for driving the second tube of the Gotthard Road Tunnel were started in Göschenen and Airolo. Numerous guests and employees of the...
This article deals with the renovation of the Horchheim Tunnel in Koblenz (Germany). The existing tunnel with a length of 576 m was put into operation in 1902 and was fully renovated between 2021 and...
A holistic CO2 reduction strategy has been implemented since 2022 for the realization of underground line 5 in Hamburg. The pioneering approach of reducing construction-related greenhouse gas (GHG)...
16.2 Meters of Precision: Gigantic Cutting Wheel for the BART Silicon Valley Phase II ProjectAn employee is manufacturing the 16,235-millimeter cutting wheel for the BART Silicon Valley Phase II...
The structural work on the north construction site of the FAIR particle accelerator, one of the largest and most complex construction projects in international cutting-edge research, is coming to an...
The Chesapeake Bay Bridge-Tunnel in Virginia, USA (official name: Lucius J. Kellam Jr. Bridge-Tunnel), has been one of the largest structures of its kind since its opening in 1964. Over a length of 37...
SBB is planning to build a new railway tunnel and an additional track between Bern Wankdorf and Ostermundigen. Among other things, this will enable the expansion of railway services between Bern and...
As part of the Stuttgart–Ulm railway project, the entire Stuttgart rail hub is being reorganised. With the start of operation of the project, the long-distance railway tube of the Prague Tunnel, which is over 100 years old, will become dispensable. The P-Option (Prag-Option) project will also use this tunnel to create a new double-track connection between Stuttgart Central Station and the 4800 line in Feuerbach.
The extension of Frankfurt's underground line 5 is making rapid progress: an approximately 2750 m long light rail line will connect the Europaviertel district with the existing underground network....
