Article (Scientific journals)
Optimal inspection and repair scheduling for mitre lock gates
Dang Van Thuong; Morato Dominguez, Pablo Gabriel; Mai, Anh Quang et al.
2019In Proceedings of the Institution of Civil Engineers. Maritime Engineering, Volume 172 (3), p. 73–94
Peer reviewed
 

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Keywords :
fatigue; maintenance & inspection; risk & probability analysis
Abstract :
[en] Hydraulic steel structures, especially lock gates, play an important role in inland waterway transport infrastructure. Normally navigation lock gates are designed to last 100 years. However, after a few decades of operation, many welded joints of the steel mitre gates may suffer deterioration and unexpected failures, occurring primarily due to fatigue. Since emergency repairs are costly, time-consuming and disruptive, optimising operation and maintenance plans of mitre gates is necessary. Risk-based inspection planning has been used for marine structures but is seldom applied for inland navigation lock gates. A procedure is proposed for inspecting welded joints using observed water levels. Optimal inspection plans are then evaluated by risk analysis, combining failure probabilities and associated expected costs for different events. A mitre gate is used to illustrate the procedure. Total expected cost following inspections performed at regular time intervals was generally higher than inspections performed when a certain annual failure probability threshold was reached.
Research center :
ANAST
Disciplines :
Civil engineering
Author, co-author :
Dang Van Thuong  ;  Université de Liège - ULiège > Form. doct. sc. ingé. & techn. (archi., gén. civ. - paysage)
Morato Dominguez, Pablo Gabriel ;  Université de Liège - ULiège > Département ArGEnCo > ANAST (Systèmes de transport et constructions navales)
Mai, Anh Quang ;  Université de Liège - ULiège > Département ArGEnCo > Constructions hydrauliques et navales
Rigo, Philippe  ;  Université de Liège - ULiège > Département ArGEnCo > Constructions hydrauliques et navales
Language :
English
Title :
Optimal inspection and repair scheduling for mitre lock gates
Publication date :
04 November 2019
Journal title :
Proceedings of the Institution of Civil Engineers. Maritime Engineering
ISSN :
1741-7597
eISSN :
1751-7737
Publisher :
ICE Publishing, London, United Kingdom
Special issue title :
Themed Issue - Renewable Energy and Oceanic Structures part II
Volume :
Volume 172
Issue :
3
Pages :
73–94
Peer reviewed :
Peer reviewed
Name of the research project :
PROJET 2.18
Funders :
WBI - Wallonie-Bruxelles International [BE]
Available on ORBi :
since 06 March 2020

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