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An Immersed Tunnel, better than a Long Span Bridge?

An Immersed Tunnel, better than a Long Span Bridge?
Autor(en): , ,
Beitrag für IABSE Symposium: Long Span Bridges and Roofs - Development, Design and Implementation, Kolkata, India, 24-27 September 2013, veröffentlicht in , S. 1-8
DOI: 10.2749/222137813808627136
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Traditionally long span bridges are applied for river crossings and often in delta areas and in soft soil conditions. As an alternative to a bridge, in countries like the US, Japan and the Netherla...
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Autor(en):


Medium: Tagungsbeitrag
Sprache(n): Englisch
Tagung: IABSE Symposium: Long Span Bridges and Roofs - Development, Design and Implementation, Kolkata, India, 24-27 September 2013
Veröffentlicht in:
Seite(n): 1-8 Anzahl der Seiten (im PDF): 8
Seite(n): 1-8
Anzahl der Seiten (im PDF): 8
Jahr: 2013
DOI: 10.2749/222137813808627136
Abstrakt:

Traditionally long span bridges are applied for river crossings and often in delta areas and in soft soil conditions. As an alternative to a bridge, in countries like the US, Japan and the Netherlands many of these fixed links have been constructed as a tunnel with the immersed tunnel technique. In these countries this technique is quite mature and common practice. However, over the past years there is also a growing interest for this technique in other countries. Recent tunnel projects have shown that immersed tunnels are feasible and competitive to a long span bridge under more challenging circumstances. Immersed tunnels have been constructed successfully in water depths up to 58 m below sea level, in very poor soil conditions, with increasing lengths, increasing design lives and in offshore conditions.

Stichwörter:
Absenktunnel