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Verhagen, H.J. (author)Because dunes protect a large part of The Netherlands against coastal flooding and inundation, it is vital to guarantee the strength of these natural sea defenses. Besides sea defense, dunes have other functions. Sandy shorelines and dunes are frequently eroded. A legal framework has been developed that guarantees the required safety-level of...journal article 1990
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Verhagen, H.J. (author)Because dunes protect a large part of The Netherlands against coastal flooding and inundation, it is vital to guarantee the strength of these natural sea defenses. Besides sea defense, dunes have other functions. Sandy shorelines and dunes are frequently eroded. A legal framework has been developed that guarantees the required safety-level of...report 1990
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Visser, P.J. (author), Vrijling, J.K. (author), Verhagen, H.J. (author)The set-up and results of a field experiment on sand-dike breach erosion are described, It is found that the breaching process for the 2.2 m high sand-dike is similar to that in Visser's (1988) laboratory experiments with a 0.6 m high sand-dike. Confrontation of Visser's (1988) breach erosion model with the field data shows reasonable agreement...conference paper 1990
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- Boer, S. (author) report 1989
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- Klein Breteler, M. (author) report 1989
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- Klein Breteler, M. (author) report 1989
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- Verheij, H.J. (author) report 1989
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- Laboyrie, J.H. (author), Klein Breteler, M. (author), Verheij, H.J. (author) report 1988
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Delo, E.A. (author)This report is an update of the working manual part of 'The hydraulic engineering characteristics of estuarine muds' Report No SR77, December 1986, made in the light of research conducted at Hydraulics Research Ltd (HR) and invited comments received from end users in the industry. A considerable research programme has been undertaken by HR since...report 1988
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Klein Breteler, M. (author), Laboyrie, J.H. (author), Verheij, H.J. (author)Erosion of banks and dikes subjected to water motion can be prevented, for instance by application of cellular concrete revetment blocks. This type of revetment combined the merits of a closed block revetment and a slope revetment consisting of loose materials. Advantages are high permeability, high stability against wave attack and low block...report 1988
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- Mastbergen, D.R. (author), Kemenade, A.J.M. van (author), Winterwerp, J.C. (author), Pernis, W.J. van (author), Groot, M.B. de (author) report 1987
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Ribberink, J.S. (author), Van der Sande, J.T.M. (author)The problem of aggradation in a river due to overloading is tackled with a mathematical model consisting of a set of one-dimensional (in space) basic equations in which the water motion is assumed to be quasi-steady and the sediment transport is determined by local conditions. Analytical solutions are presented of a linearized simple-wave model,...report 1984
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Bolton, P. (author)The terms 'wash load', 'suspended bed material load' and 'bed load' are not clearly defined but, if applied with care, provide a useful basis for sub-dividing the total discharge of sediment in a river for the purpose of measurement. The accuracy with which each of the three types of sediment transport must be measured will depend on their...report 1983
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Gerritsen, F.A. (author)This report describes the design and implementation of the Delft Image Processor DIP-1. In this pipelined image-processing computer, a number of storage and processing modules which operate concurrently and synchronously (hardware floating-point ALUs and multiplier, conversion table and cellularlogic table) may be interconnected in a...report 1982
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Anonymous, A. (author)CONDITIONS LEADING TO CHANNEL EROSION FACTORS INFLUENCING DESIGN REQUIRED INFORMATION FOR DESIGN OF CHANNELS DESIGN PROCEDURE FOR ARMORFLEX LlNED CHANNELS EXTENT OF PROTECTIVE LlNING SELECTION OF FILTER FABRIC BACKFILL AND VEGETATIONreport 1981
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Gossé, J.G. (author)A knowledge of the distribution of sediment in terms of bed and suspended load is essential for a good working description, both qualitative and quantitative, of a coastal sea. A variety of physical, chemical and biological processes in coastal waters are directly connected to, or influenced by, the sediment regime present there. Physical...report 1977
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Whitehead, E. (author)Guidance on the use of grass to stabilise surfaces subject to erosion by intermittent flow. Provides information on the erosion resistance and frictional resistance of grass. Includes recommendations on grass mixtures, etc. Extensive literature surveyreport 1976
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Carstens, T. (author)The gravity platforms in the North Sea, sitting directly on granular seabeds, may be undercut by scour and need scour protection. Conventional methods of protections are developed for structures 1or 2 orders of magnitude smaller and seem unnecessarily conservative when scaled to these larger sizes. The reason is that some of the flow details...report 1976
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Fernandez Luque, R. (author)In this thesis first a general derivation is given of the 'macro'-equations of mass- and linear-momentum balance that govern the mo'mentum transfer from a Newtonian fluid to rigid particles in a fluid-solid mixture. In particular, attention is paid to a) the attenuation of viscous-momentum transfer from the boundary to the interior of a granular...doctoral thesis 1974
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Schukking, W.H.P. (author)Samenvattend rapport van alle twee- en drie dimensionale ontgrondingsonderzoeken uit de periode 1960-1970 bij het Waterloopkundig Laboratorium in opdracht van Rijkswaterstaat. De informatie uit de onderzoeken M648 en M863 zijn in deze rapporten samengevat, evenals de resultaten uit M847. (3 delen).report 1972