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van der Krogt, M.G. (author)
Dikes are crucial for the protection against floods. One of the ways in which dikes can fail is by the instability of the inner slope. Credible probabilities of failure for slope stability are essential for the safety assessment of existing dikes and the design of dike reinforcements. This dissertation focuses on improving failure probability...
doctoral thesis 2022
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Without our dikes and dunes, 60% of the Netherlands would flood on a regular basis. This area is home to 9 million people. The latest<br/>report of the Intergovernmental Panel on Climate Change (IPCC, February 2022) underlines the importance of reinforcing water safety. Sea levels are rising and extreme weather is becoming increasingly common....
book 2022
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Lashley, Christopher H. (author)
Coastal communities across the globe are often protected by structures, such as seawalls, levees or dikes, which allow only a safe volume of water to pass over or “overtop” them due to wave action during storms. The area seaward of these structures is often characterised by shallow, gently sloping beds referred to as foreshores.<br/>As storm...
doctoral thesis 2021
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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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Jonkman, Sebastiaan N. (author), Voortman, H.G. (author), Klerk, W.J. (author), van Vuren, S. (author)
This article highlights recent developments in flood risk management in the Netherlands and presents approaches for reliability analysis and asset management for flood defences and hydraulic infrastructure. The functioning of this infrastructure is of great importance for the country as large parts of it are prone to flooding. Based on a...
journal article 2018
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Verhagen, H.J. (author)
An overview of the upgrade of the railroad dike in Vlaardingen to a full sea defence, creating in this way a multifunctional flood defence.
report 2016
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Schweckendiek, T. (author)
conference paper 2015
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Verheij, H.J. (author), Hoffmans, G. (author), Hardeman, B. (author), Paulissen, M. (author)
Destructive wave overtopping tests have been performed at more than 20 dike sections in the Netherlands using the Wave Overtopping Simulator to simulate the overtopping waves. The tests show the combined behaviour of turf and substrate up to mean wave overtopping discharges of 75 ?/s per m, meaning wave volumes up to 5,500 ?/m with flow...
conference paper 2012
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Van der Meer, J.W. (author), Hardeman, B. (author), Steendam, G.J. (author), Schüttrumpf, H. (author), Verheij, H.J. (author)
Wave overtopping discharges at coastal structures are well described in the EurOtop Manual (2007), including the distribution of overtopping wave volumes. Each volume that overtops a dike or levee will have a certain flow velocity and depth record in time, often given by the maximum velocity and flow depth. This paper describes some further...
conference paper 2011
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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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Verhagen, H.J. (author), Jaspers Focks, D.J. (author), Algera, A. (author), Vu, M.A. (author)
Vetiver grass is a sustainable and innovative solution for the protection of banks. It is shown that Vetiver grass is able to establish a full-stop of bank erosion caused by rapid drawdown. Therefore it provides us with strong indications that it is highly suitable as an anti-erosion measure. A combination of cohesive soil and Vetiver grass...
conference paper 2008
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Verhagen, H.J. (author)
Dike design is a very traditional craft. Since many generations dikes have been constructed in our part of Europe. After each disaster the dike was rebuilt, and improved. The improvement was always based on the experiences of the previous flood. For example, for many years the design height of a dike was determined as the height of the highest...
conference paper 2007
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Kortenhaus, A. (author), Bollinger, K. (author), Dassayanake, D. (author)
Report on laboratory tests on a crest drainage dike; investigation if a channel in the crest of the dike is able to decrease the amount of overtopping over the dike. Chapter 2 provides details about findings from previous studies and the relevance of those findings to this research project. Available literature on wave run-up and wave...
report 2007
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van Gerven, K.A.J. (author), Akkerman, G.J. (author)
The present report deals with the application of a provisional Smart Grass Reinforcement (SGR) system in 2006 for full scale testing of increased overtopping at the Groningen sea dyke test section near Delfzijl, as envisaged in 2007. The SGR has been placed at two strips of 4 m wide: one primary strip at the basic test site and one at a...
report 2007
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Akkerman, G.J. (author), van Gerven, K.A.J. (author), Schaap, H.A. (author), van der Meer, J.W. (author)
In the present report field erosion tests of the inner slope of a sea dyke in the province of Groningen (near Delfzijl) are described for the situation of severe wave overtopping. Three types of tests have been performed: tests at the present grass cover, tests at a reinforced grass cover and tests at a section of bare clay. At the reinforced...
report 2007
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Van der Meer, J.M. (author)
The wave overtopping simulator is a device which is able to simulate overtopping waves at the crest of a dike and at the inner slope. The device has been used in the ComCoast project to test a traditional dike section with grass and the SGR, the Smart Grass Reinforcement, placed in May 2006. This report describes in the first part (Chapters 1-6)...
report 2007
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Dijkman, M. (author)
This document is the final report of a Master thesis research. The research was executed as cooperation between Delft University of Technology, ARCADIS and ComCoast as part of The Road and Hydraulic Engineering Institute of the Directorate-General of Public Works and Water management (RWS DWW). In this report, the hurricane defence system of St....
report 2007
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Galema, A.A. (author), De Jong, R.H. (author), Pruis, K.W. (author), Wisse, A. (author)
Dit verslag is een rapportage van ons afstudeerproject voor de opleiding algemene Civiele Techniek aan de Noordelijke Hogeschool Leeuwarden.Dit afstudeerproject is in samenwerking met INFRAM uitgevoerd. Het onderzoek richt zich op de sterkte van grasbekleding op het binnentalud van zeedijken. Voor het beproeven van de grasmat op locatie wordt...
report 2006
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ComCoast (author)
A desk study has been carried out in order to develop a conceptual model for the erosion of inner dike slopes with reinforced grass cover. Based on the results the following can be concluded: The presence of a geosynthetic in a grass slope can be taken into account in the EPM method by increasing the critical flow velocity. In particular, a...
report 2005
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Van Gerven, K.A.J. (author), Akkerman, G.J. (author)
The present report provides a state-of-the-art inventory of relevant information and technical concepts for the ComCoast project, being the first phase of the research stages of Work Package 3 (WP3). This project was assigned to Royal Haskoning by CUR. The information scan was set-up in a systematic way. About 160 relevant references have been...
report 2005
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