Probabilistic Design of Caisson Breakwaters and Sea Walls: Present Status and Perspectives

Oumeraci, Hocine; Kortenhaus, Andreas; Allsop, N. W. H.; Groot, M.B. de; Crouch, RS; Vrijling, J.K.

doi:10.1061/40549(276)129

Cited by 11 publications

(16 citation statements)

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“…(Oumeraci et al, 2000a). Based on the results of PROVERBS and the lessons drawn from this and other projects on coastal de-[ences, the conceptual PRA-based framework shawn in Figure 4 has been deveIoped for the design of coastal flood defences: (i) prediction of flood risk, (ii) evaluation of acceptable flood risk, (iii) evaluation of the remaining risklrisk level through comparison ofpredicted and acceptable risk and (iv) management of the remaining risk.…”

Section: Necessity Of New Design Approach For Coastal Flood Defencesmentioning

confidence: 99%

“…Sorne methods on how to assess and consider these uncertainties in PRA have been used for vertical breakwaters (Oumeraci et al, 2000a), but further sophisticated methods such as fuzzy sets, elicitation of expert opinions etc. are getting more and more operational and must also be applied (Cooke, 1991 .S •... Oumeraci et al, 2000) ln the following sections particular focus will be put on the methodologies related ta tmee aspects illustrated by Figure 5, including (i) the prediction of flood risk, (ii) the evaluation of acceptable risk and (iii) the calculation of the flood risk level (remaining risk).…”

Section: Necessity Of New Design Approach For Coastal Flood Defencesmentioning

confidence: 99%

“…Problem (Adapted from Oumeraci et al, 2000a) Although the valuation of human life is questionable from the ethical view point, the problem is often formulated in terms of the amount society is willing to pay for saving life. Values between 1 to 10 million US$, depending on considerations associated with aversion of risk, have been reported.…”

Section: Figure 17: Formulation Of Target Flooding Probability As a Cmentioning

confidence: 99%

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Probabilistic risk analysis framework for the design of coastal flood defences

Oumeraci¹,

Leichtweiss-Institut²

2000

VIèmes Journées, Caen

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RésuméOn propose un cadre d'analyse probabilistique des risques pour la conception des défenses littorales contre l'inondation qui répond le mieux aux critères de "sus tainability". L'approche générale prend en compte les mesures de contrôle et de maîtrise du risque résiduel comme partie intégrale du processus de conception des défenses. Cet article est concentré particulièrement sur l'analyse probabilistique du risque d'inondation qui exige trois étapes bien distinctes: (i) la prédiction du risque d'inondation, (ii) l'évaluation du risque admissible d'inondation ainsi que (iii) l'évaluation du risque résiduel, obtenu par comparaison des risques prédit et admissible. AbstractA conceptual framework based on probabilistic risk analysis (PRA) is proposed for the design of coastal flood defences which meets the sustainability requirements. The overall framework includes the management of the remaining risk as an integral part of the design process. The implementation of the risk analysis requires (i) the prediction oÎ the flood risk, (ii) the evaluation of the acceptable flood risk and (iii) the evaluation of the flood risk level which is obtained through comparison of the predicted and acceptable flood risk.

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Section: Necessity Of New Design Approach For Coastal Flood Defencesmentioning

confidence: 99%

Section: Necessity Of New Design Approach For Coastal Flood Defencesmentioning

confidence: 99%

Section: Figure 17: Formulation Of Target Flooding Probability As a Cmentioning

confidence: 99%

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Probabilistic risk analysis framework for the design of coastal flood defences

Oumeraci¹,

Leichtweiss-Institut²

2000

VIèmes Journées, Caen

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“…Thus, it is a mathematical tool that might improve the probabilistic approach in breakwater design and conservation strategies. Probabilistic methods are well established in coastal engineering (see Burcharth, 1997, Castillo et al, 2004 and methodologies for reliability based designs are present in design codes such as the European PROVERBS (Oumeraci et al, 1999), the Spanish ROM 0.0-01 (Puertos del Estado, 2001) or the North American CEM (U. S. Army Corps of Engineers, 2002). However, while most efforts have been made in characterizing the randomness of wave climate, the structural response is still considered as deterministic or pseudo-deterministic in most cases.…”

Section: Introductionmentioning

confidence: 99%

Analysis of the Influence of the Different Variables Involved in a Damage Progression Probability Model

Campos

Castillo

Molina

2014

Int. Conf. Coastal. Eng.

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Nowadays risk based designs as well as reliable maintenance strategies are essential when dealing with coastal structures. In that sense, the probability of failure due to hydraulic instability of the armor layer is one of the main issues in rubble mound breakwaters, and so is improving the knowledge on the deterioration rate of the armor layer. In 2012 Castillo et al. made some suggestions on how to build consistent stochastic damage models and proposed a comprehensive Damage Progression Probability Model (DPPM) with general validity, depending on a pair of parameters for each of the three major entities involved in the problem: structure, wave action and initial damage. Based on experimental data, two different calibrations of these parameters are accomplished in the present paper, allowing an initial evaluation of the specific influence of each entity in the model.

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“…Probabilistic methods have been applied during the last years to vertical breakwaters and are now considered (Oumeraci et. al., 2000b) to be potentially an important support to the designer.…”

Section: Introductionmentioning

confidence: 99%

Hazard Analysis of Dynamically Loaded Caisson Breakwaters

Martinelli¹,

Voortman²,

Lamberti³

et al. 2001

Coastal Engineering 2000

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Probabilistic analysis, based on the final outcomes of the European research project PROVERBS, Oumeraci et al. 2000a, is applied to two example cases: Genoa Voltri main breakwater (Italy) and Easchel breakwater, a fictitious case combining Eastern Scheldt Storm Surge Barrier (the Netherlands) for the subsoil and Gela breakwater (Italy) for the rest. Sliding induced by non-breaking, impact or broken waves is the discussed failure mechanism. A calibrated 1 degree of freedom dynamic model, easy to use in a probability based design process, is adopted for the evaluation of the force transferred to the foundation by impacts. For both example cases, realistic results were obtained also thanks to some attention on the choice of congruous statistics.

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Probabilistic Design of Caisson Breakwaters and Sea Walls: Present Status and Perspectives

Cited by 11 publications

References 0 publications

Probabilistic risk analysis framework for the design of coastal flood defences

Probabilistic risk analysis framework for the design of coastal flood defences

Analysis of the Influence of the Different Variables Involved in a Damage Progression Probability Model

Hazard Analysis of Dynamically Loaded Caisson Breakwaters

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