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Cornish, B.A. (author)
With the aid of a grant from the Water Research Foundation of Australia, the Water Research Laboratory has undertaken an investigation into surface treatments for small farm dams Vegetal cover with natural gr asses and low cost soil and bitumen admixtures are under study. As a preliminary to laboratory and field testing, a survey of available...
report 1965
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Lillevang, O.J. (author)
Wave and sand movement conditions must be right for a coastal groin to produce the beneficial effects it was built to achieve. Some groins produce no shoreline improvement; some groins prove harmful; some that act beneficially also cause harm elsewhere, and disputes follow. Design data are sparse, so experience and judgment become important...
report 1965
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Gronewald, G.J. (author), Duncan, W.W. (author)
This is a progress report on the Homer Spit Beach Erosion Study. Information is presented regarding the rapid acceleration of the erosion processes due to the subsidence of the Homer Spit during the 27 March 1964 earthquake. The effect on existing groins both before and after the quake are discussed. Immediately after the quake, emergency...
report 1965
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Kidby, H.A. (author), Oliver, J.G. (author)
The study area encompasses 18 miles of Oregon coastline known as Clatsop Beach, which lies between the Columbia River south jetty and Tillamook Head, south of Seaside, Oregon. The physical changes (including man-made changes such as jetty construction which was initiated in 1885) that have occurred in the area since 1792 are described and...
report 1965
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Lai, K.K. (author), Stone, D.M. (author), Hattersley, R.T. (author)
Model studies formed a basis for investigating the hydraulics of bywash spillways for farm darns When constructed in natural earth such spillways are trapezoidal in cross section The surface of the spillway needs protection from scour and this protection is usually in the form of grass. These tests extended to variations in spillway geometry and...
report 1966
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Yong, K.C. (author), Stone, D.M. (author)
Third report on use of grass on farm spillways; tests on slopes 1:10 to 1:2.5 (prototype scale tests). Permissible velocities suitable for design were given.
report 1967
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Yong, K.C. (author)
This report is the fourth in a series dealing with the use of natural grasses and bituminous and soil admixtures for surfacing farm dam bywash spillways. When the work reported here was completed, the test channels were demolished to make way for new construction, and no further tests of this nature are contemplated. The previous report (Yong...
report 1968
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Bakker, W.T. (author), Joustra, D.Sj. (author)
The aims of this paper are: 1. To publish some available coastal measurements and computations of more than local importance. 2. To investigate the influence of groynes in practice. 3. To investigate the motion of the gullies in the outer deltas. The following conclusions are drawn: 1. The gross littoral drift along the Dutch coast is of the...
report 1970
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Wiggers, J.B.M. (author)
report 1970
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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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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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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 VEGETATION
report 1981
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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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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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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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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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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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