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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
document
Özer, I.E. (author), van Damme, M. (author), Schweckendiek, T. (author), Jonkman, Sebastiaan N. (author)
Flood defense failures are rare events but when they do occur lead to significant amounts of damage. The defenses are usually designed for rather low-frequency hydraulic loading and as such typically at least high enough to prevent overflow. When they fail, flood defenses like levees built with modern design codes usually either fail due to wave...
conference paper 2016
document
Rippi, Aikaterini (author), Nuttall, Jonathan (author), Teixeira, Ana (author), Schweckendiek, T. (author)
The Dutch design codes for the dikes with retaining walls rely on Finite Element Analysis (FEM) in combination with partial safety factors. However, this can lead to conservative designs. For this reason, in this study, a reliability analysis is carried out with FEM calculations aiming to demonstrate the feasibility of reliability analysis for a...
conference paper 2016
document
Van Duijnen, P.G. (author), Schweckendiek, T. (author), Calle, E.O.F. (author), Van Eekelen, S.J.M. (author)
In the Netherlands, the design guideline for basal reinforced piled embankments has been revised (CUR226:2015) adopting a new analytical design model (The Concentric Arches (CA) model, Van Eekelen et al., 2013; 2015). The CA model provides geosynthetic reinforcement (GR) strains which were compared with laboratory and in situ measurements (Van...
conference paper 2015
document
Kanning, W. (author), Bocovich, C. (author), Schweckendiek, T. (author), Mooney, M.A. (author)
Piping failure of levees is one of the main contributors to flood risk. Piping occurs when the head difference over a levee results in uplift of the inland blanket, followed by backward erosion in the aquifer due to high local flow velocities. Whether piping occurs, highly depends on local geo-hydrological circumstances which are uncertain due...
conference paper 2015
document
Miranda, C. (author), Teixeira, A. (author), Huber, M. (author), Schweckendiek, T. (author)
The traditional Dutch way to deal with piping failure in river dikes is the implementation of piping berms. The disadvantage of such a measure is the required inland space. Relief wells, on the other hand, require less or no inland space representing an attractive alternative solution. The aims of this paper are first, to show how reliability...
conference paper 2015
document
Jonkman, S.N. (author), Schweckendiek, T. (author)
This paper presents and overview of advances in flood risk and levee reliability analysis in the Netherlands. It is described how new safety standards – in the form of a target failure probability – have been derived on the basis of nationwide flood risk assessments which taken into account both economic risk and risk to life. The process for...
conference paper 2015
document
Jonkman, S.N. (author), Schweckendiek, T. (author)
This paper presents and overview of advances in flood risk and levee reliability analysis in the Netherlands. It is described how new safety standards – in the form of a target failure probability – have been derived on the basis of nationwide flood risk assessments which taken into account both economic risk and risk to life. The process for...
conference paper 2015
document
Van Duijnen, P.G. (author), Schweckendiek, T. (author), Calle, E.O.F. (author), Van Eekelen, S.J.M. (author)
In the Netherlands, the design guideline for basal reinforced piled embankments has been revised (CUR226:2015) adopting a new analytical design model (The Concentric Arches (CA) model, Van Eekelen et al., 2013; 2015). The CA model provides geosynthetic reinforcement (GR) strains which were compared with laboratory and in situ measurements (Van...
conference paper 2015
document
Schweckendiek, T. (author), Vrouwenvelder, A.C.W.M. (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 defences due to the typically large uncertainties in ground conditions. Hence, information on ground conditions and soil...
conference paper 2015
document
Dupuits, E.J.C. (author), Schweckendiek, T. (author)
A front defense can improve the reliability of a rear defense in a coastal flood defense system. The influence of this interdependency on the accompanying economically optimal safety targets of both front and rear defense is investigated. The results preliminary suggest that the optimal safety level of a coastal flood defense system can only be...
conference paper 2015
document
Jonkman, S.N. (author), Schweckendiek, T. (author)
Failure of flood defences during extreme events can lead to enormous damage and loss of life. This paper presents lessons learned from investigations of flood events over recent years, including the 2005 flooding in New Orleans, USA, caused by hurricane Katrina. Based on these findings, new developments in the field of research, design and...
journal article 2015
document
Schweckendiek, T. (author)
conference paper 2015
document
Miranda, C. (author), Teixeira, A. (author), Huber, M. (author), Schweckendiek, T. (author)
Nowadays there is an on-going discussion about piping safety for dikes in the Netherlands. Relief wells represent an attractive solution as mitigation measure against piping, saving hinterland space. Nevertheless, they have been disregarded due to the uncertainties in its performance over its life cycle. The aim of this contribution is to...
conference paper 2014
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Schweckendiek, T. (author)
Dikes and levees play a crucial role in flood protection in deltaic areas such as the Netherlands. Internal erosion piping or under-seepage is a major cause of levee failures and a main contributor to the probability of failure of river levees due to the large (mostly geotechnical) uncertainties. The present thesis investigates how geotechnical...
doctoral thesis 2014
document
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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Jonkman, S.N. (author), Schweckendiek, T. (author), Dupuits, E.J.C. (author), Heyer, T. (author), De Bijl, J. (author), Labrujere, A. (author)
lecture notes 2013
document
Van Beek, V.M. (author), Knoeff, H.G. (author), Schweckendiek, T. (author)
Backward piping is the process of channel formation in a sandy aquifer under river dikes. During high water periods this process manifests itself by the formation of sand boils. A long history of cases and experiments has contributed to the insights into this phenomenon and has improved the ability to predict the safety of levees.
book chapter 2011
document
Schweckendiek, T. (author)
The reliability of flood defenses is often dictated by large uncertainties in the hydraulic loading and the structural resistance. Additional information decreases uncertainty, however, acquiring it is often costly. One source of information, even though in many cases readily available, is hardly used – survived loads. This article shows how...
conference paper 2011
document
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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