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Service states of an operating tunnel: view from a structural engineer



Title: Service states of an operating tunnel: view from a structural engineer
Author(s): Yong Yuan
Paper category : conference
Book title: 2nd International Symposium on Service Life Design for Infrastructures
Editor(s): K. van Breugel, Guang Ye, Yong Yuan
Print-ISBN: 978-2-35158-096-7
e-ISBN: 978-2-35158-097-4
Publisher: RILEM Publications SARL
Publication year: 2010
Pages: 929 - 936
Total Pages: 8
Nb references: 7
Language: English


Abstract: Understanding the service state of a tunnel is the fundamental aspect for its service life design. When tracing back the data collected from a site inspection of a tunnel structure it can be concluded that it is rather difficult to identify the service state of a tunnel structure given the current specifications of the serviceability limit state during the design stage. To illuminate the service state is a challenging task for given the complexity of durability of a tunnel structure which usually interacts with loads and environmental actions. This paper tempts to give a statement on concept of the serviceability limit state of a tunnel in full operation, seen from a structural engineer point of view. In order to achieve this, inspection data could be classified into levels of material, structural components, and structure. This implies that service could be specified according to the degree of decay in relation to their performance. In this paper, a classification of service states has been suggested based on this consideration and being a way to assess the actual state of development in the view of limit state design.


Online publication: 2011-04-20
Publication type : full_text
Public price (Euros): 0.00