Hauptbeiträge | Main Articles

Tunnel Inspection with Artificial Intelligence

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.

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Injektionstechnik | Injection Technology Sika Deutschland

Full-Area Grouting behind existing Shotcrete Layer

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...

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Nachrichten | News Austria + Italy

Construction Progress at the Brenner Base Tunnel

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...

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Hauptbeiträge | Main Articles

Monitoring the Infrastructure while Working under Railway Tracks

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.

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Hauptbeiträge | Main Articles

Eppenberg Tunnel: Soft Ground Drive and Inner Lining

On the Berne-Olten-Zurich railway line in Switzerland, the stretch between Gretzenbach and Wöschnau, which is the sole remaining twin-track section, forms a bottleneck. This situation is to be rectified by late 2020 by widening the line between Olten and Aarau to provide four tracks. This upgrade will increase the route’s availability and capacity as well as it will attain more flexibility. We reported on the 3.1 km long Eppenberg Tunnel in issue 8/2017 of tunnel. This article thus merely provides a brief summary of the overall project and concentrates on the findings obtained from the construction sections already completed as well as the current status.

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