Impact of corrosion on the first immersed concrete tunnel, the Maastunnel
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Bibliographic Details
| Author(s): |
C. B. M. Kees Blom
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| Medium: | conference paper | ||||
| Language(s): | English | ||||
| Conference: | IABSE Conference: Assessment, Upgrading and Refurbishment of Infrastructures, Rotterdam, The Netherlands, 6-8 May 2013 | ||||
| Published in: | IABSE Conference, Rotterdam, May 2013 | ||||
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| Page(s): | 544-545 | ||||
| Total no. of pages: | 7 | ||||
| Year: | 2013 | ||||
| DOI: | 10.2749/222137813806521496 | ||||
| Abstract: |
The structure of the first immersed concrete tunnel, the Maastunnel in Rotterdam is more than 75 years old and has always been serving well. Recently the tunnel was upgraded to fulfil the increased traffic and fire safety requirements for tunnels. During those construction activities heavy corrosion of structural reinforcement has been observed. This paper explains the damage that has been observed, the effects on the structural safety, the urgency and impact of the measures to be taken and the plan to refurbish in order to upgrade the tunnel for 50 more years. This project actually shows the consequences when the technical lifetime of a major concrete structure in a main city has been exceeded. Since this is the first immersed concrete tunnel it shows what can be expected in the coming decades worldwide. |
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| Keywords: |
corrosion repair safety tunnel refurbish
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