DYWIDAG-Systems International (DSI)

DYWIDAG-Systems International DSI develops, manufactures and supplies entire product lines and system solutions for tunneling. DSI supplies its high quality tunneling systems under the brand name of “ALWAG Systems” to clients around the world to make the underground industry safer. The product range includes a wide variety of anchors, rock bolts, passive rock reinforcement and support, and the well-known field-approved AT-System. The AT-Casing System, which is part of this series, deserves special mention: it is used for the cost-effective and practical implementation of pipe umbrella,...

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Issue 2011-06 Croatia

AT-Pipe Umbrella Support System allows safe Driving of Omis Tunnel

The most important route between the Croatian seaports of Split and Makarska is the D8 National Road. This road was built very near to the shoreline of the Adriatic Sea in the 1960s. Today, the road...

Issue 2014-06

Mode of Construction for the New Rosshäusern Tunnel changed

The new tunnel will replace the single-track old Rosshäusern Tunnel with its many bends, dating back to 1901, which could not be redeveloped for economic reasons. The old tunnel is also to be used as...

Issue 2009-06 Construction Equipment

Australia’s longest Road Tunnel in Brisbane

The city of Brisbane on the East Coast of Australia is Queensland’s industrial, economic and financial center. Many service companies are located in the city center. Brisbane Central Business...

Issue 2010-01 Construction Equipment

High Speed Train Gautrain for Soccer World Cup in 2010

With approx. 1.4 % of the surface area of South Africa, Gauteng is the country’s smallest province in terms of area. However, the province contains nearly 20 % of the country’s population. Because...

Issue 2011-02 Switzerland

Breakthrough at Weinberg Tunnel in Zurich

The Weinberg Tunnel in Zurich, part of Swiss Federal Railways’ “Diameter Line Project”, was successfully broken through on 22nd November 2010. After boring a total of 4,382 m the convertible TBM...