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List of products by author: N. Radončić
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Managing Residual Risk – a Case Study
Abstract: Accidents, time- and cost overruns at tunnel projects are rather common. The reasons are manifold, reaching from inadequate investigation, over outdated and oversimplified design practices to neglecting the importance of managing residual risks during construction. If risk analyses are conducted at all, in many cases they are seen as separate task after completion of the design. Thus...
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New yielding elements: layout, performance and aspects of lining design
Abstract: The expansion of the current European infrastructure demands the construction of several major and challenging tunnelling projects, such as Gotthard and Ceneri in Switzerland, LyonTurino in Italy/France and Koralm, Brenner and Semmering tunnels in Austria. Due to their length and alignment as “base tunnels”, they encounter various geological formations and tectonical faults under high...
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Redesign of the rock support, in the bus ramps of Stockholm bypass, due to changing geology
Abstract: The Stockholm bypass is a 21 km long motorway west of Stockholm, Sweden. This paper presents the challenge due to unpredicted geological conditions during ongoing construction. The weakness zones containing graphite and clay were found to be more prominent and more unfavorable than predicted during the design. During the construction of the pre-cut the weakness zones were observed to strike...
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The Brenner Base Tunnel, Overview and TBM Specifications at the Austrian Side
Abstract: The Brenner Base Tunnel (BBT) - including the existing bypass of Innsbruck (Inn Valley Tunnel) - runs for 64 km between Austria and Italy, making it the longest underground railway tunnel in the world. The BBT consists of two single track tubes, connecting cross passages every 333 m and an exploratory tunnel – which lies between and about 12 m below the main tunnels. About 40 km of more than...
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