This article describes the development of a high early strength anchor mortar that is to be used in tunnel construction to secure the outer lining of the tunnel. Anchor mortars currently available on...

A Kemroc KR 165 rotary drum cutter in combination with a heavy special Liebherr R 960 tunnel excavator became one of the key machines in Nuremberg for driving metro tunnels. Alternating with a classic...

On 7 September, Professor Arnold Dix has been elected as the new President of the International Tunnelling and Underground Space Association (ITA-AITES) during the ITA’s 48th General Assembly held in Copenhagen ...

With Dipl.-Ing (FH) Martin-Devid Herrenknecht (35), a member of the family is taking over a strategic Board of Management portfolio in the family business led by founder and CEO Dr.-Ing. E.h. Martin...

The Swiss Federal Roads Office (FEDRO) has announced its decision to award the Gotthard main northern section to the JV “secondo tubo” (Implenia 60%/Frutiger 40%). The order for the 7.9 km long...

When it comes to traffic safety in a tunnel, optimal lighting makes a big difference. To enable the human eye to adapt to the vastly different lighting conditions outside and inside, it’s essential...

“It‘s dark in front of the pick” – this old German miners’ proverb applies to all types of underground work. Whether it‘s ore mining, fossil fuel extraction or transport and infrastructure tunnelling...

Due to their organisational structure and contracts, conventional project delivery models reach their limits in complex large-scale construction projects. In this context, Integrated Project Delivery (IPD) is an alternative regarding a joint project realisation...