Searched for: subject%3A%22revetments%22
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van der Vegt, N. (author), Klerk, W.J. (author), Peters, D.J. (author), van Gent, M.R.A. (author), Hofland, Bas (author)
Initial damage, caused by previous wave loading or other events, might affect the hydraulic stability of pattern-placed revetments. Three common types of damage are considered in this study. The effect of this assumed initial damage on the hydraulic stability and failure probability of revetments is quantified using a FEM model. This model is...
journal article 2024
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van den Hoven, Kim (author), Grashof-Bokdam, Carla J. (author), Slim, Pieter A. (author), Wentholt, Ludolph (author), Peeters, Patrik (author), Depreiter, Davy (author), Koelewijn, André R. (author), Stoorvogel, Marte M. (author), van den Berg, M. (author), Kroeze, Carolien (author), van Loon-Steensma, Jantsje M. (author)
Coastal flood managers seek to anticipate future flood risk and as a result consider the adaptation of flood defences. Instead of crest heightening, dikes can be adapted to include hydrodynamic reducing vegetated foreshores to form a nature-based hybrid flood defence, for instance; at managed realignments. In this study we investigated the...
journal article 2024
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Sorgatz, Julia (author), van den Eijnden, A.P. (author), Montenegro, Héctor (author), Hicks, M.A. (author)
To protect embankments along German inland waterways against local slope sliding failure caused by ship-induced water level drawdown, they are mainly secured by bank revetments. Often, large embankment sections are designed on the basis of a limited number of field and laboratory tests. Thus, uncertainties arise with regard to the mechanical and...
journal article 2023
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Foss, Ollie (author), Blenkinsopp, Chris E. (author), Bayle, P.B. (author), Martins, Kévin (author), Schimmels, Stefan (author), Almeida, Luis Pedro (author)
Pressure on the coastline is escalating due to the impacts of climate change, this is leading to a rise in sea-levels and intensifying storminess. Consequently, many regions of the coast are at increased risk of erosion and flooding. Therefore coastal protection schemes will increase in cost and scale. In response there is a growing use of...
journal article 2023
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Kreyenschulte, Moritz (author), Schiirenkamp, David (author), Kuhling, Volker (author), Brühl, M. (author), Goseberg, Nils (author), Schiittrumpf, Holger (author)
Many sea dikes along the coast of the North Sea are protected against wave loading and currents by riprap revetments that are grouted with mortar. The mortar bonds the individual stones of the top layer, thereby forming a coherent structure that is able to withstand normal forces and shear forces as well as momentums, thus leading to a planar...
journal article 2019
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Klein Breteler, M. (author)
In het kader van het “Vergelijkend onderzoek zetstenen voor dijken” is onderzocht of zetstenen slimmer ingezet kunnen worden bij dijkversterkingen. Doordat de thans leverbare typen zetstenen verschillen in vorm, hebben ze ieder specifieke kwaliteiten. Ze zijn bijvoorbeeld extra stabiel of remmen de golfoploop goed. Dit onderzoek is uitgevoerd...
report 2016
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Klein Breteler, M. (author)
Manual for the design of pitched stone and block revetments on dikes, based on research in the Netherlands in the period 1970 -1995. This book is a translation of the Dutch CUR manual 155.
report 2016
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Hai, T.L. (author), Verhagen, H.J. (author)
Many dike failures have been ignited by damage due to erosion on the landward slopes. This paper investigates how grass covered slopes perform when being attacked by overtopping flow during storm surges. Based on observations during a number of simulator tests, damage is classified into three types 'head-cut', 'roll-up' and 'collapse' depending...
conference paper 2014
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Van Geer, P.F.C. (author), Van Thiel de Vries, J.S.M. (author), Boers, M. (author), Den Bieman, J.P. (author), McCall, R.T. (author)
This paper presents adaptations to the XBeach model aimed at including the relevant processes for the generation of scour holes at the toe of a revetment. Dutch assessment rules for the safety of sea defenses need to be adjusted to cope with a combination of sandy dunes and hard elements. To that end, the XBeach model is prepared to be...
conference paper 2014
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Van der Meer, J.W. (author), Hoffmans, G. (author), Van der Hoven, A. (author)
Within the framework of WTI, Research and Development of Flood Defence Assessment Tools (Wettelijk Toetsinstrumentarium), which is called in Dutch: WTI-2017 "Onderzoek en ontwikkeling landelijk toetsinstrumentarium", research was carried out to develop an erosion model for grass in the wave run-up zone consistent with the current model in use...
report 2014
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Jassim, I. (author), Tan, S. (author), Vermeer, P.A. (author), Hicks, M.A. (author)
The numerical simulation of wave attack on a sea dike with an asphalt concrete revetment during a severe storm is carried out using the dynamic Finite Element Method. When wave loads attack the revetment during such a storm, both the revetment and the underlying soil may be damaged. The two-phase flow equations are considered, to study the...
conference paper 2012
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Van Thiel de Vries, J.S.M. (author)
In a situation with a narrow dune, the dune base can be protected with a revetment to reduce dune erosion during extreme events. To quantify the effects of a revetment on storm impact, the functionality of the numerical storm impact model XBeach (Roelvink et al., 2009) is extended to account for the complex morphodynamics around revetments. Here...
conference paper 2012
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Dorst, K. (author), Provoost, Y. (author), Verhagen, H.J. (author)
A revetment of pattern placed elements, or a so called pitching, is used worldwide to protect shorelines and embankments. Also in The Netherlands more than 500 km of river, lake and sea dikes is protected by pitchings. Until the 60’s the design and construction of pitchings was based on experience. After the first damages on pitchings and the...
conference paper 2012
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Verhagen, H.J. (author)
Apart from many ecological advantages, mangroves in front of a coastal defence may lower the construction and maintenance costs of the defence. Although mangroves have hardly any reducing effect on water levels (and on tsunami impact) mangroves may significantly reduce wave attack on a coastal dike, and in this way reduce the cost of a revetment...
conference paper 2012
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Klein Breteler, M. (author)
In het kader van de toetsing van de waterkeringen zoals voorgeschreven in de Waterwet dienen ook steenzettingen elke zes jaar getoetst te worden. Om de toetsing te vereenvoudigen is door Rijkswaterstaat in 2006 het initiatief genomen om een computerprogramma te laten ontwikkelen dat al het rekenwerk en de beoordelingen uitvoert. Er is gekozen...
report 2012
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Klein Breteler, M. (author)
In het rekenmodel Steentoets wordt weliswaar rekening gehouden met de belastingduur, maar gedurende de belastingperiode wordt gerekend met een constante golfhoogte. Voor het meewegen van een variërende golfhoogte gedurende de belastingperiode zijn er twee methodes vergeleken. Om de twee methodes goed te kunnen vergelijken is de werkelijke...
report 2012
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Davidse, M.P. (author), 't Hart, R. (author), De Looff, A.P. (author), Montauban, C.C. (author), Van de Ven, M.F.V. (author), Wichman, B.G.H.M. (author)
Sinds het uitkomen van het Technisch Rapport Asfalt voor Waterkeren, is er de nodige kennis en ervaring opgedaan met het beoordelen van de veiligheid van asfaltdijkbekledingen. Op basis daarvan is de gehanteerde toetsmethode op een aantal punten verbeterd. Dit rapport bevat geactualiseerde kennis m.b.t. het toetsen, inspecteren en ontwerpen van...
report 2012
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Mourik, G.C. (author), Klein Breteler, M. (author)
Steenzettingen boven de stilwaterlijn (bijvoorbeeld toetspeil) ondervinden een veel kleinere belasting dan steenzettingen onder de waterlijn. Hiervoor zijn globale invloedsfactoren opgenomen in Steentoets op basis van enkele Deltagootproeven, maar deze houden nog geen rekening met de invloed van een berm in het talud. Om een breder toepasbaar...
report 2011
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Muttray, M.O. (author)
The Hillblock is a concrete element for the protection of dike slopes. Delta Marine Consultants (DMC) investigated the hydraulic properties of the Hillblock in 2D model tests. Wave run-up measurements have been performed on dike slopes with Hillblock revetment and on a smooth impermeable reference slope. The model tests have been carried out at...
report 2011
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't Hart, R. (author)
Uitgaande van een dijkvakbenadering is een probabilistische analyse voor het mechanisme toplaagstabiliteit uitgevoerd. Er is een faalfunctie gekozen en er zijn op grond van de beschrijvingen in het TR steenzettingen en de huidige ontwerppraktijk verwachtingswaarden en spreidingen voor de invoerparameters van het rekenmodel Steentoets2008...
report 2011
Searched for: subject%3A%22revetments%22
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