This report deals with the refurbishing of the Petersberg Tunnel. In this connection, for the first time within the scope of a pilot project, the tunnel-in-tunnel method was applied on an electrified...

The second article about the Rotterdamsebaan project in The Hague continues from the publication in tunnel 1/2018 „The Rotterdamsebaan Project in The Hague“ and provides an overview of the further...

A tunnel inspection today still means a lot of manual work – long deployments, often at night, on closed tracks or roads. And after the elaborate inspection, the often very subjective data is time-consuming to process. Digitalization will make these processes easier in the future. In a research project, Amberg Technologies and Amberg Engineering, both companies of the Swiss Amberg Group, have developed a cloud-based platform, which uses artificial intelligence for automatic damage detection.

The Eurasia Tunnel (Fig. 1) is the first underground road connection to cross the Bosporus. Since late 2016 this important traffic artery has linked the Asian and European parts of the Turkish...

After more than 60 years of use, refurbishment of the road tunnel between Neuhaus and Spitzingsee bei Schliersee, Germany, was urgently necessary. The waterproofing directly behind the shotcrete inner...

Start of Tunnelling Works at South Exploratory TunnelOn 29 March 2019 tunnelling work for the fourth drilling of Lot H51 Pfons–Brenner began on the south exploratory tunnel, marked by a drilling...

Special regulations have to be observed with regard to safe railway operation while carrying out work such as pipe-jacking or tunnelling under railway tracks. Towards this end, what is known as safetoring must be undertaken by means of a suitable measuring system and method. Safetoring is (deformation) monitoring with directly coupled measurement data evaluation so that the existing track position and the availability of the infrastructure can be assessed at any time, thus enabling direct intervention in the railway and construction activities should the limit or alarm values be exceeded.

On April 9, a seminar-workshop was held in Düsseldorf by the STUVA in conjunction with the VDV – the Association of German Transport Companies (Fig. 1). The topic was: “Availability of Public...

As from now the provisional programme for the two parallel lectures series on Tunnelling and Tunnel Operation/Planning can be accessed on the homepage and downloaded (...