Risk-cost optimised maintenance strategy for tunnel structures

Baji, H, Li, C, Scicluna, S and Dauth, J 2017, 'Risk-cost optimised maintenance strategy for tunnel structures', Tunnelling and Underground Space Technology, vol. 69, pp. 72-84.


Document type: Journal Article
Collection: Journal Articles

Title Risk-cost optimised maintenance strategy for tunnel structures
Author(s) Baji, H
Li, C
Scicluna, S
Dauth, J
Year 2017
Journal name Tunnelling and Underground Space Technology
Volume number 69
Start page 72
End page 84
Total pages 13
Publisher Pergamon Press
Abstract As an essential infrastructure tunnels play an important role in transport network. The functionality of this infrastructure depends on its structural and durability performance. In the climate of an increasing scarcity of resources, infrastructure maintenance is becoming increasingly important. This paper aims to develop a maintenance strategy for tunnels, which determines when, where and what to maintain, to ensure the safe and serviceable operation of tunnel structure with the intention to minimise the total risk. Application of the proposal is presented in a numerical example of a practical case study. It was found that an optimum solution, which can predict when, where and what to maintain for tunnel structure to ensure its safe and serviceable operation during its lifespan, exists. The paper concludes that the proposed framework can equip tunnel operators and asset managers with a tool in developing a risk cost optimised maintenance strategy for tunnels under their management.
Subject Structural Engineering
Keyword(s) Failure mode
Maintenance
Optimization
Tunnel
DOI - identifier 10.1016/j.tust.2017.06.008
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ISSN 0886-7798
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