tunnel

Projektbericht | Project Report

Hamburg’s U5 Subway Line: Tendering and Award Criteria for Sustainability Requirements

The decarbonisation of major infrastructure projects is a key factor in achieving climate targets in the transport sector. Public clients can contribute to this by incorporating sustainability criteria into their tendering and award conditions. Such measures can create incentives to use lower-emission building materials and construction methods, whilst also improving transparency in supply chains. Using the example of Hamburg’s U5 subway line, this article shows how sustainability can be integrated into procurement processes step by step, in compliance with public procurement law. The focus is on criteria for reducing greenhouse gas emissions (GHG emissions) and for addressing environmental and social risks, particularly within steel and concrete supply chains.

Tunnel and underground construction would not be possible without construction machinery. In confined spaces, these often highly specialized machines must carry out a closely coordinated sequence of...

Advertorial / Advert

Stationary jaw crushers for a landmark infrastructure Project

With the construction of the Sisikon Tunnel as part of the Axen project, one of Central Switzerland’s most significant infrastructure developments is taking shape along the national road between Brunnen and Flüelen....

STUVA-Nachrichten | STUVA News Geo-BAB Research Project

From Spoil to Construction Material: Turning Soil and Rock Into a Sustainable Cement Substitute

Every year, millions of tonnes of excavated material are generated during tunnelling and underground construction projects. To date, most of this material has been disposed of in landfill sites without further use. The interdisciplinary research project Geo-BAB is investigating how such clay mineral-rich materials can be transformed into a low-CO ₂ alternative to conventional cement through thermal treatment and chemical activation.

Nachrichten | News Austria

75th Geomechanics Colloquium and Austrian Tunnel Day 2026 in Salzburg

From 8 to 9 October, the 75th Geomechanics Colloquium of the Austrian Society for Geomechanics (ÖGG) will take place at the “Salzburg Congress” conference centre. This year’s colloquium is dedicated to Univ.-Prof. Dipl.-Ing. Dr. techn Gerhard Seeber (1925–2025), who has shaped generations of engineers in the field of power station construction. On Friday, 7 October, the 15th Austrian Tunnel Day will also be held at the Salzburg Congress Centre.

Nachrichten | News Germany

ElbX: Tunnel Breakthrough at the Elbe Crossing

On 22 June 2026, the ElbX tunnel project commissioned by TenneT Germany celebrated the TBM-breakthrough. The tunnelling works, part of the large-scale SuedLink project, will connect Schleswig-Holstein and Lower Saxony over a distance of around 5.2 km. The Elbe crossing is one of the key sections of the power line, which will in future transport renewable energy from the north to the south of Germany.

Nachrichten | News United Kingdom

Construction of New Cable Tunnel Under the Thames

National Grid, the transmission system operator in England and Wales, is expanding its high-voltage grid as part of The Great Grid Upgrade. A key project is a 2200 m long cable tunnel under the Thames from Gravesend to Tilbury.

Interview In Conversation: Georgios Anagnostou and Martin Herrenknecht

“The Gibraltar Tunnel Is Feasible”

Science meets mechanical engineering, theory meets practice, and academia meets industry. And Zurich meets Schwanau. Georgios Anagnostou and Martin Herrenknecht have a good reason to meet: A joint study by ETH Zurich and Herrenknecht AG on the feasibility of a tunnel under the Strait of Gibraltar has been finalised and concludes that this long-cherished dream is now technically feasible. A conversation among experts.

Fachtagungen | Conferences

Record Attendance at the 9th Munich Tunnelling Symposium

The Munich Tunnelling Symposium takes place every two years at the University of the Bundeswehr in Munich, Neubiberg. In 2024, the organisers were already delighted to welcome a remarkable 230 visitors. The ninth edition of this specialist event for tunnelling experts, held on 3 July 2026, broke the previous record by a considerable margin, attracting 280 participants.

Cybersicherheit | Cybersecurity Eset

EU NIS2 Directive – Cybersecurity Is Now a Management Responsibility

The European NIS2 Directive is intended to significantly strengthen cybersecurity in the EU – and in future it will affect far more organisations than before. IT security is therefore no longer an optional IT issue, but an integral part of responsible corporate governance.