Searched for: subject:"revetments"
(1 - 20 of 64)

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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 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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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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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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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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Bijlsma, E. (author)
In this manual design rules and guidelines for the design of Polyurethane Bonded Aggregate revetments (PBA-revetments) are presented, based on results from laboratory research, full scale model tests, and experience and field measurements. Research is still ongoing, but from the first results some insight into the structural behaviour of PBA can...
report 2010
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Caljouw, M. (author)
Traditioneel worden dijken bekleedt met steenzettingen, asfalt, gras of breuksteen. Echter, er worden steeds meer initiatieven voorgesteld waarbij innovatieve materialen worden toegepast als dijkbekleding. Deze initiatieven zul len in de toekomst leiden tot een efficienter of maatschappelijk beter geaccepteerde dijkbekleding. Tot nag toe is voor...
report 2010
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Oumeraci, H. (author), Staal, T. (author), Pfoertner, S. (author), Ludwigs, G. (author), Kudella, M. (author)
ELASTOCOAST revetments are highly porous structures made of crushed stones which are durably and elastically bonded by Polyurethane (PU). To improve the understanding of the physical processes involved in the wave-structure-foundation interaction and to develop prediction formulae for both hydraulic performance and wave loading more than 75...
report 2010
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Grimm, C. (author)
Cost comparision of an Elastocoast revetment in comparison with a classical revetment in coastal protection.
report 2009
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Verhagen, H.J. (author)
A new construction method of Polyurethane (PUR)-bonded revetments has been tested successfully on various locations in Germany, in the Netherlands, in France, and in the UK. See also the presentation of Bijlsma on this ICE breakwater conference. This year a series of large scale test in the GWK-facility in Hannover have been executed. This...
conference paper 2009
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Verhagen, H.J. (author)
A new construction method of Polyurethane (PUR)-bonded revetments (Elastocoast) has been tested successfully on various locations in Germany, in the Netherlands, in France, and in the UK. See also the presentation of Bijlsma on this conference. This year a series of large scale test in the GWK-facility in Hannover have been executed. This...
conference paper 2009
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Bijlsma, E. (author)
From 2004 to 2007 several pilot tests with an Elastocoast revetment were constructed along the North-Sea islands in the most northern part of Germany. In 2007 Elastocoast was introduced to the Dutch market. Arcadis supervised the construction and monitoring of two prototype pilots in the Netherlands. (September 2007) Revetment on a rudimentary...
report 2009
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Piontkowitz, T. (author)
A large number of the dikes in the North Sea and Baltic Sea regions are covered with grass that is exposed to hydraulic loading from waves and currents during storm surges. During previous storm surges the grass cover layers often showed large strength and remained undamaged. A clear physical understanding of the failure of grass cover layers...
report 2009
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Verhagen, H.J. (author)
A new construction method of Polyurethane (PUR)-bonded revetments has been tested successfully as stable breakwater constructions on various locations in Germany (“Hamburg Hallig”, “Holm Gröde”), as dike revetment in the Netherlands (breakwater revetment in Zuidbout and Petten), as shoreline protection in France (canal embankment near Le Havre),...
conference paper 2009
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Anonymous, A. (author)
Standard for the design of revetment and shore protection in inland navigation canals.
report 2008
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Peters, D.J. (author)
Het project betreft het beproeven van teenconstructies met een horizontale kracht. De gedachte daarbij is dat deze kracht de belasting representeert die de bekleding uitoefent op de teenconstructie indien deze naar beneden glijdt en tegen de teen gaat rusten. Er zijn twee locaties beproefd. Op één locatie bestaat de teenconstructie uit een rij...
report 2008
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Gu, D. (author), Verhagen, H.J. (author), Van de Ven, M. (author)
PUR-revetment is a newly developed method for hydraulic application. Its structure is similar to that of open stone asphalt revetment, but the crushed stones are glued by polyurethane (PUR) instead of bitumen. To study the feasibility of applying PUR-revetment, a research based on the comparisons between PUR-revetment and open stone asphalt...
journal article 2008
Searched for: subject:"revetments"
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