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Verheij, H.J. (author), Hoffmans, G. (author), Den Adel, H. (author), Akkerman, G.J. (author), Giri, S. (author)
A desk study has been carried out regarding interface stability of granular filter structures. Actually, the project focuses on two particular aspects: (1) interface stability as function of the thickness of the filter layer consisting of standard armourstone gradings, and (2) interface stability of gravel mixtures with a wide gradation The...
report 2009
document
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
document
de Jong, W. (author), Akkerman, G.J. (author)
Overzicht van de beschikbare kennis over het functioneren van rivierkribben in binnen- en buitenland. Overzicht van zowel doorlatende en ondoorlatende kribben. Met name ervaringen uit de USA en uit India. Ook flexibele kribben komen aan de orde.
report 2006
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Flikweert, J.J. (author), Akkerman, G.J. (author)
Het voorliggende rapport geeft een samenvatting en totaaloverzicht van de inhoudelijke resultaten tot dusver in het Onderzoeksprogramma Kennisleemtes Steenbekledingen (OKS). Het betreft fase 2 van project Evaluatie en Bijsturing OKS. Tezamen met de evaluatie van het proces in fase 1, vormt deze vastlegging van de inhoud een basis voor het komen...
report 2005
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Van Gerven, K.A.J. (author), Van der Meer, J.W. (author), Van Heereveld, M.A. (author), Akkerman, G.J. (author)
The present proposal deals with a presentation of three potentially feasible concepts for strengthening of the sea defences as to allow for increased wave overtopping, within the framework of ComCoast. In addition, for each concept an indicative proposal is given for a further theoretical study (Phase 2) and an indicative approach is shown for...
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
document
Van Gerven, K.A.J. (author), Van der Meer, J.W. (author), Van Heereveld, M.A. (author), Akkerman, G.J. (author)
In the present report, a Smart Grass Reinforcement for overtopping resistant sea defences is elaborated on a theoretical basis, within the framework of ComCoast, Work Package 3 (WP3). The smart grass revetment concept aims at strengthening the present grass revetments at the crests and inners slopes of sea embankments. Smart denotes a...
report 2005
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van den Brink, M.B. (author), Baan, P.J. (author), Verheij, H.J. (author), Kok, M. (author), Barendrecht, A. (author), Akkerman, G.J. (author)
report 2002
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Mosselman, E. (author), Akkerman, G.J. (author), Verheij, H.J. (author), Hoffmans, G.J.C.M. (author), Jongeling, T.H.G. (author), Petit, H.A.H. (author)
report 2000
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Mosselman, E. (author), Akkerman, G.J. (author)
report 1998
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Akkerman, G.J. (author), Verheij, H.J. (author)
report 1998
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Akkerman, G.J. (author), Verheij, H.J. (author)
report 1998
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Akkerman, G.J. (author)
report 1998
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Akkerman, G.J. (author)
report 1996
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Akkerman, G.J. (author), Regeling, H.J. (author)
report 1995
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Akkerman, G.J. (author)
report 1993
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Akkerman, G.J. (author)
report 1993
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Akkerman, G.J. (author)
report 1988
document
Akkerman, G.J. (author)
Evaluation report
report 1986
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