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Kolen, B. (author), Jonkman, S.N. (author), Ter Horst, W. (author), Terpstra, T. (author), Bouwer, L. (author), Loois, A. (author), Kanning, W. (author), De Jong, M. (author)
De Jonge Deltacommissie is een open en onafhankelijk netwerk dat bestaat uit alle jonge professionals die ideehebben ingezonden om Nederland waterveilig te houden. De Jonge Deltacommissie zal na het uitbrengen van het advies van de Deltacommissie een vervolg krijgen. De Jonge Deltacommissie wil dat Nederland de komende eeuwen goed beschermd is...
report 2008
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Kok, M. (author), Jonkman, S.N. (author), Kanning, W. (author), Rijcken, T. (author), Stijnen, J. (author)
Naar aanleiding van ons onderzoek geven we de volgende aanbevelingen aan de Deltacommissie: 1. De financi effecten van het aanpassen van waterkeringen zijn bepaald bij specifiek klimaatscenario. We bevelen aan om deze effecten ook kwantitatief in beeld te brengen voor andere scenarios. 2. Voor maatschappelijke acceptatie van het versterken van...
report 2008
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Schweckendiek, T. (author), Kanning, W. (author)
Piping, also called under-seepage, is an internal erosion mechanism, which can cause the failure of dikes or other flood defence structures. The uncertainty in the resistance of a flood defence against piping is usually large, causing high probabilities of failure for this mechanism. A considerable part of this uncertainty is of epistemic nature...
conference paper 2009
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Hillen, M.M. (author), Jonkman, S.N. (author), Kanning, W. (author), Kok, M. (author), Geldenhuys, M.A. (author), Stive, M.J.F. (author)
This study is part of a global study on the costs of adaptation to the effects of climate change. It adds information from three specific case studies (the Netherland, New Orleans and Vietnam) to the global study. The case study areas are comparable by type of coast; all are low-lying deltaic coastal areas. This study investigates the unit cost...
report 2010
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Vrijling, J.K. (author), Schweckendiek, T. (author), Kanning, W. (author)
Current design codes like the Eurocode use safety or reliability classes to assign target reliabilities to different types of structures or structural members according to the potential consequences of failure. That, in essence, is a risk-based criterion. A wide range of structures is designed with such codes, and distinction is made between...
conference paper 2011
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Tsimopoulou, V. (author), Kanning, W. (author), Verhagen, H.J. (author), Vrijling, J.K. (author)
This paper presents the development of a semi-probabilistic method for armour layer design of rubble mound breakwaters, which is based on the use of safety factors. The objective is to introduce an approach that is both attractive to designers and sufficiently reliable when a high degree of uncertainty is involved in the design process. The main...
conference paper 2011
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Tsimopoulou, V. (author), Kanning, W. (author), Voortman, H.G. (author), Verhagen, H.J. (author)
One of the failure mechanisms of a rubble mound breakwater is the failure of its armour layer. In order to determine the stability of an armour layer, the design load has to be defined, which is in fact the wave that attacks the structure. Being a highly stochastic phenomenon, the wave action is not easily defined, while there is always some...
conference paper 2011
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Tsimopoulou, V. (author), Kanning, W. (author), Stijnen, J.W. (author), Van Gelder, P.H.A.J.M. (author)
This poster presents the framework of a decision support model for time-dependent investments in structural flood risk mitigation measures.
journal article 2011
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Jonkman, S.N. (author), Kanning, W. (author), Ter Horst, W.L.A. (author)
Vorig jaar kwamen de resultaten van de derde landelijke toetsing van de veiligheid van de primaire waterkeringen beschikbaar. Ongeveer eenderde van de meer dan 3.700 km dijken en duinen voldoet niet aan de normen. Er bestaat dus een aanzienlijke opgave om de keringen te laten voldoen aan de huidige normen. Deze krijgt vorm in het (nieuwe)...
journal article 2012
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De Vries, S. (author), Southgate, H.N. (author), Kanning, W. (author), Ranasinghe, R.W.M.R.J.B. (author)
conference paper 2012
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Kanning, W. (author)
Piping is an important failure mechanism of flood defense structures. A dike fails due to piping when a head difference causes first the uplift of an inland blanket layer, and subsequently soil erosion due to a ground water flow. Spatial variability of subsoil parameters causes the probability of piping failure to increase, often to unacceptable...
doctoral thesis 2012
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Schweckendiek, T. (author), Kanning, W. (author), Jonkman, Sebastiaan N. (author)
Piping is one of the main failure mechanisms for flood defences. This paper gives an overview of recent developments in the reliability analysis for this mechanism in the Netherlands. These comprise new approaches in the treatment of heterogeneity of the subsoil with respect to the failure process, the inclusion of information from field...
journal article 2014
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Bischiniotis, K. (author), Kanning, W. (author), Jonkman, S.N. (author)
This research focuses on the optimization of river dikes using probabilistic methods. Its aim is to develop a generic method that automatically estimates the failure probabilities of many river dike cross-sections and gives the one with the least cost, taking into account the boundary conditions and the requirements that are set by the user....
conference paper 2014
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Kool, J.J. (author), Kanning, W. (author), Jommi, C. (author), Jonkman, Sebastiaan N. (author)
The hindcasting of levee failures can provide valuable information about levee strength, strength models and dominant factors that contribute to failure. It is however not always clear how and why a levee failed as evidence (such as detail subsoil composition) is not present anymore.
abstract 2017
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Schweckendiek, T. (author), van der Krogt, M.G. (author), Teixeira, Ana (author), Kanning, W. (author), Brinkman, Rob (author), Rippi, Katerina (author)
Dikes and levees play a crucial role in flood protection. The main causes of levee failures are of geotechnical nature. Geotechnical failure modes are also the main contributors to the probability of failure of flood defenses such as levees due to the large uncertainties in ground conditions. Hence, information on ground conditions and soil...
conference paper 2017
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Kanning, W. (author), Teixeira, Ana (author), van der Krogt, M.G. (author), Rippi, Katerina (author), Schweckendiek, T. (author), Hardeman, B (author)
Dikes in the Netherlands are by law required to comply with predefined safety standards. The goal of this paper is to derive the safety format and the required factor of safety for the inner slope (landside slope) instability failure mode. The first step is to derive the required target reliability for a cross-section. The second step is to...
conference paper 2017
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Kool, J.J. (author), Kanning, W. (author), Heyer, Torsten (author), Jommi, C. (author), Jonkman, Sebastiaan N. (author)
Forensic analysis of past failures is valuable to improve our understanding of levee behavior. In this article a new systematic approach of forensic analysis for levee failures is proposed and applied to the Breitenhagen levee breach that occurred along the river Saale in Germany in 2013. The purpose of this study is to identify the cause of the...
journal article 2019
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Pol, J.C. (author), van Beek, Vera (author), Kanning, W. (author), Jonkman, Sebastiaan N. (author)
Backward erosion piping is an important failure mode of dikes and dams. The time required for the backward erosion process to result in dike failure is expected to be an important factor in the safety of dikes. This holds especially in coastal and estuarine areas which are dominated by storm surge, and pipes may not fully develop during a storm....
conference paper 2019
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Kanning, W. (author), Schweckendiek, T. (author)
This paper presents a Bayesian model to determine the model uncertainty of a critical horizontal gradient model for piping for dikes, such a Lane and Bligh. A Bayesian model is needed for two reasons. First, there is a large overlap in cases that failed and survived. Second, the evidence of the failed cases is limited .The model consists of a...
conference paper 2019
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Klerk, W.J. (author), Kanning, W. (author), van Veen, Nelle-Jan (author)
Many flood defences in the Netherlands will have to be reinforced in the coming decades. Many dikes do not fulfill the safety standard due to geotechnical failure modes, largely due to epistemic, reducible uncertainties. . The Value of Information is a measure to indicate beforehand whether an investment towards reducing epistemic uncertainty is...
conference paper 2019
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