Tough working conditions prevail in tunnelling. The demands posed on technical equipment are correspondingly high, as e.g. gears, which must reliably cater for movement in various machines. In tunnel boring machines (TBMs) planetary gears must withstand strong vibrations, impacts, high temperatures and pronounced external pressure. These powerful gears are also applied in building cranes, drilling rigs, cutters, excavators, pumps or tracked vehicles.
From May 3–9, 2019, the World Tunnel Congress will take place in the South-Italian city of Naples. On May 9, the final day of the congress, participants will have the opportunity of joining technical visits to underground construction sites and can choose one of four interesting destinations ...
The second bore 5860 m long for the Albula Tunnel of the Rhätische Bahn (RhB) in Switzerland was broken through on 3 October 2018 after about three years of construction. The tunnel was driven from...
Video clip of the 180 ° turn (with German commentary)
The fourth tunnel drive of the tunnel boring machine (TBM) „SUSE“ started in November 2018. Before that, the 120 m long machine had to be dismantled into seven pieces, which then were turned one by one underground. This article contains a short video clip of the unusual turning manoeuvre, made by the DB Projekt Stuttgart–Ulm GmbH.
The 5th Rock Mechanics & Tunneling Day on 23 May 2019 will be organized by WBI Consulting Engineers together with the German Railway (DB) Organization for the Project Stuttgart–Ulm, DB Netze and the civil engineering section of the Engineering Association of Württemberg.
The Porr bidding consortium won the tender for the construction project “A44, VKE 12, Tunnel Hirschhagen, Technische Ausstattung” at the turn of the year 2018/19. Porr Infra GmbH will be responsible...
The 2.2 km long Kaisermühlen Tunnel on the A22 Donauufer motorway is the longest motorway tunnel in Vienna. With a daily traffic volume of about 120 000 vehicles (of which 11 % are heavy goods vehicles), it is the most heavily used road tunnel in Austria. After a construction phase of about two years opperator Asfinag has now nearly completed the general refurbishment of all safety equipment (lighting, ventilation and fire protection) of the tunnel.
In Singapore, a Herrenknecht tunnel boring machine (EPB Shield, Ø 5,250 mm) excavated two large drains for the Stamford Diversion Canal. The challenge: winding bottlenecks and an inner-city drive in...
The following companies joined the STUVA during the second half of 2018: Aerzen Rental Deutschland GmbH, Rinteln (Germany) Optimas Solutions – Sofrasar, Sarrequemines (France) Ryll Management,...
In December 2018, the “Recommendations for Fire Service Lifts in underground Stations” were published as the 51st volume in the STUVA “Research + Practice” series. The planners of underground stations...
