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Application of reliability design methods to Donghae harbor breakwater

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dc.contributor.authorKim, Seung-Woo-
dc.contributor.authorSuh, Kyung-Duck-
dc.date.accessioned2010-06-10T22:56:56Z-
dc.date.available2010-06-10T22:56:56Z-
dc.date.issued2006-
dc.identifier.citationCoastal Engineering Journal, 48: 31-57en
dc.identifier.urihttps://hdl.handle.net/10371/67655-
dc.description.abstractReliability design methods have been developed for breakwater designs since the mid-1980s. The reliability design method is classified into three categories depending on the level of probabilistic concepts being employed, i.e., Level 1, 2, and 3 methods. Each method gives results in different forms, but all of them can be expressed in terms of probability of failure so that the difference can be compared among the different methods. In this study, we apply the reliability design methods to the stability of armor blocks and sliding of caissons of the breakwater of Donghae Harbor located in the east coast of Korea, which was constructed by traditional deterministic design methods to be damaged in 1987 and reinforced in 1991. Analyses are made for the breakwaters before the damage and after the reinforcement. The allowable probability of failure of a Tetrapod armor layer of 50 years lifetime is proposed as 40% for existing stability formulas, whilst that for caisson sliding as 20% with the failure criterion for the cumulative sliding distance over the lifetime of 0.1 m. The probability of failure before the damage is much higher than the allowable value for both stability of armor blocks and sliding of caissons, indicating that the breakwater was under-designed. The probability of failure for the reinforced breakwater is lower than the allowable value, indicating that the breakwater became stable after the reinforcement. On the other hand, the results of different reliability design methods were in fairly good agreement, confirming that there is not much difference among the different methods.en
dc.description.sponsorshipauthor's final versionen
dc.language.isoenen
dc.publisherWorld Scientificen
dc.subjectBreakwatersen
dc.subjectarmor blocksen
dc.subjectcaissonsen
dc.subjectreliability design methodsen
dc.subjectprobability of failureen
dc.titleApplication of reliability design methods to Donghae harbor breakwateren
dc.typeArticleen
dc.contributor.AlternativeAuthor김승우-
dc.contributor.AlternativeAuthor서경덕-
dc.identifier.doi10.1142/S0578563406001325-
Appears in Collections:
College of Engineering/Engineering Practice School (공과대학/대학원)Dept. of Civil & Environmental Engineering (건설환경공학부)Journal Papers (저널논문_건설환경공학부)
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