Nachrichten | News

Switzerland | Schweiz

2nd Gotthard Tube: Access Shaft Contract Awarded

In mid-March 2021, the Swiss Federal Roads Office (FEDRO) has awarded the 86.6 million Swiss francs (78.5 million euros) contract to build a 4 km access shaft for the second Gotthard tube (Lot 243) to...


DSI Underground Acquires VR Company Edvirt

On 26 February 2021, DSI Underground SMART, a wholly owned subsidiary of DSI Underground completed the acquisition of the virtual reality training specialist Edvirt. Edvirt provides products and...


Projektbericht | Project Report

Ausbau | Lining

Baumaschinen | Construction Machinery

Risikomanagement | Risk Management

Risk Management in Major Tunnelling Projects – Part 1: Basics and Success Factors

Effective cost and risk management is critical to the success of large infrastructure projects. Significant cost overruns in major projects show that risk management is not being given the importance it should have. In order to be able to measure and control current cost and the schedule against set targets, it is necessary to assess risks in a transparent manner and to consider them appropriately. The insight is not new – every reader will certainly have heard this or similar statements. But why do we get the impression that nothing changes and that we – paraphrasing Einstein – do the same thing over and over again and still expect different results?


Forschung & Entwicklung | Research & Development

tunnel Series: Interaction Modeling in Mechanized Tunnelling, Part 2

Soil Excavation and Tool Wear

The wear of tunnelling tools successively reduces their excavation capability, which slows down the penetration rate of the tunnel-boring machine (TBM) and eventually requires a replacement of the...


Veranstaltungen | Events

Buchbesprechung | Book Review