It is of great importance for the durability of the inner tunnel lining that the concrete surface achieved should be as homogenous and pore-free as possible. The quality of the concrete is influenced...
A section of the heavily frequented A4 autobahn in Thuringia is undergoing widening via the new twin-bore Jagdberg Tunnel. The client, Deutsche Einheit Fernstraßenplanungs- und -bau GmbH (DEGES),...
Introduction
Upon the appearance of steel-fibre-reinforced concrete on the European market in the 1970s, neither standards nor guidelines for the design and dimensioning of this new material were...
The rail link from Malmö to Göteborg on the west coast of Sweden is undergoing upgrading to a high-speed line, cutting travelling times between the two cities by two hours. A particular challenge is...
For the Lungern bypass tunnel, a 3.5 km long exploratory tunnel was first driven from north to south in 2000 – 2003 using a tunnel-boring machine (TBM, 4.75 m diameter). The tunnel route was...
After a construction period of nearly five years, the opening to traffic of the previously missing section of the S35 Bruck Expressway in late May, 2010, now for the first time permits an efficient,...
The worldwide unique underground fair – the IUT ‘2011 – will take place from September 14 to 15, 2011 – for the 6th time – at the Hagerbach Test Gallery /VSH) near Sargans in eastern...
The Cassanawald Tunnel forms part of the northern approach ramp of the A13 motorway close to the San Bernardino Tunnel, and serves as an avalanche shield for the road. It features two-lane contraflow...
A veteran Double Shield completed one of the world’s longest single-drive TBM tunnels, at 25.4 km (15.8 mi), on November 14, 2010 (Fig. 1). The 4.8 m (15.7 ft) diameter machine bored the Pinglu...
EPB shield S-574 for upgrading of the autostrada (motorway) route between Italy‘s cities of Bologna and Florence successfully passed its acceptance inspection by the Italian client at the...
