The 2.3 km long, twin-lane Chienberg Tunnel, which bypasses Sissach, opened shortly before Xmas 2006 after a 6-year construction period. It is used by some 15,000 vehicles per day. The construction...
1 Introduction
The joints closed by compressed sealing elements between the segments are potential weak points in monocoque tunnel linings (Fig. 1). Joints are practically entirely responsible for...
In a mixed and unpredictable underground environment the increasing use of hybrid TBMs is one that goes with the territory. Where multiple machine types might have once been used for different...
1. Barring down and Scaling – important for Securing the Excavation
Scaling or barring down the roof and ribs underground largely serves to secure the excavation following blasting and for...
The STUVA has undertaken numerous tests with different methodical approaches in conjunction with the Institute for Transport and Spatial Planning at Erfurt University of Applied Sciences (IVR) and the...
The French motorway A4 connects the capital Paris with the economic region around Strasbourg, which is one of the most productive in the country. That makes this motorway one of the most important and...
