Maintenance of the undersea section of the Seikan Tunnel

This paper introduces the results of measurements made over a period of 14 years after the Seikan Tunnel was opened for service. Because this tunnel is a very long undersea tunnel with the length of 54 km, the necessity of clarifying the long-term behavior of the tunnel structure was recognized from...

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Bibliographic Details
Published in:Tunnelling and underground space technology 2005-03, Vol.20 (2), p.143-149
Main Author: Ikuma, Michitsugu
Format: Article
Language:English
Subjects:
Applied sciences
Buildings. Public works
Convergence measure
Exact sciences and technology
Long-term monitoring
Tunnel maintenance
Tunnels, galleries
Water inflow
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Summary:This paper introduces the results of measurements made over a period of 14 years after the Seikan Tunnel was opened for service. Because this tunnel is a very long undersea tunnel with the length of 54 km, the necessity of clarifying the long-term behavior of the tunnel structure was recognized from the start. Various measurements are made to survey the condition of the ground and lining concrete and data thus obtained are used to assess the soundness of the tunnel structure. Judging from the data thus far obtained, the tunnel structure appears to remain in a good condition.
ISSN:0886-7798
1878-4364
DOI:10.1016/j.tust.2003.10.001