Accessways to the western Entrance to the "Dos Valiras" tunnel
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Bibliographic Details
| Author(s): |
Leonardo Fernández
Guillermo Ayuso Lucía Fernández |
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| Medium: | conference paper | ||||
| Language(s): | English | ||||
| Conference: | IABSE Symposium: Engineering for Progress, Nature and People, Madrid, Spain, 3-5 September 2014 | ||||
| Published in: | IABSE Symposium Madrid 2014 | ||||
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| Page(s): | 2004-2009 | ||||
| Total no. of pages: | 6 | ||||
| Year: | 2014 | ||||
| DOI: | 10.2749/222137814814068427 | ||||
| Abstract: |
The “Dos Valiras” Tunnel connects the valley of the river Valira del Nord (Northern Valira) with that of the river Valira de Orient (Eastern Valira). At its western extreme it reachs into the Valira del Nord which it crosses by means of two bridges. These bridges give on to a large roundabout which is in great part significantly raised due to its hilly terrain. This has been achieved by means of a structure of pre-stressed concrete divided into six stretches joined by hinges. It is a public work of the greatest import, the most important ever undertaken in Andorra- leaving aside the large tunnels constructed recently |
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| Keywords: |
cable-stayed bridge concrete structure single tower raised roundabout successive cantilever construction
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