Searched for: author:"Hoffmans, G."
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document
Van der Meer, J.W. (author), Van Hovern, A. (author), Paulissen, M. (author), Steendam, G.J. (author), Verheij, H.J. (author), Hoffmans, G. (author), Kruse, G. (author)
Dit rapport is voortgekomen uit de resultaten van een vier jaar durend destructief onderzoek naar de erosiebestendigheid van binnentaluds onder golfoverslagbelasting. Dit onderzoek is onder andere uitgevoerd met de golfoverslagsimulator. In het onderzoek is kennis ontwikkeld over de wijze waarop golfoverslag de grasbekleding van een binnentalud...
report 2012
document
Verheij, H.J. (author), Hoffmans, G. (author), Dorst, K. (author), Van de Sande, S. (author)
Granular filters are used for protection of structures against scour and erosion. For a proper functioning it is necessary that the interfaces between the filter structure, the subsoil and the water flowing above the filter structure are stable. Stability means that there is no transport of subsoil material through the filter to the water above...
conference paper 2012
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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
document
Steendam, G.J. (author), Hoffmans, G. (author), Bakker, J. (author), Van der Meer, J.W. (author), Frissel, J. (author), Paulissen, M. (author), Verheij, H.J. (author)
Overview of overtopping with focus on river dikes. Realtin with sod density.
report 2012
document
Hoffmans, G. (author), Verheij, H.J. (author)
This paper discusses scour without bed protection, such as propeller scour, two-dimensional horizontal, three-dimensional horizontal scour generated by free jets downstream of gates and outlets, two-dimensional vertical and three-dimensional vertical scour. The flow velocities in two- and three-dimensional propeller and free jets are briefly...
journal article 2011
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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
Searched for: author:"Hoffmans, G."
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