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Mansard, E.P.D. (author)In the last fifteen years the techniques of wave generation 'have advanced to a great extent that it is row possible to exercise controls, on parameters such as wave grouping, wave asymmetries. etc .. , during the simulation process.. This paper describes some of these techniques that were developed at the National Research Council of Canada,...report 1988
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Ahrens, J.P. (author)A reef breakwater is a low-crested rubble-mound breakwater without the traditional multilayer cross section. This type of breakwater, in essence, is a homogeneous pile of stone with individual stone weights similar to those used in the armour and first underlayer of conventional breakwaters. Because of their high porosity, reef breakwaters are...report 1989
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Jensen, O.J. (author), Sorensen, T. (author)Rubble mOlJnd breakwaters have been used for centuries for the protection of harbours. In many cases breakwaters were built in relatively deep water and exposed to waves too severe in relation to the size of rock used for construction. Furthermore, they were often built with a steep slope, and consequently, severe damage occurred. In some cases,...report 1989
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Allsop, N.W.H. (author), Latham, J.P. (author)This paper identifies the need for quantitative durability testing of rock for use on dynamically stable rock armoured slopes. The derivation and use of a suite of engineering tests for rock quality is considered, and the limitations of Simple accept/reject criteria discussed. Recent developments in techniques for the quantification of armour...report 1989
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Burcharth, H.F. (author), Frigaard, P. (author)The stability of a berm type breakwater (sacrificial breakwater) was tested in a 3-dimensional model at rhe Hydraulics Laboratory, Department of civil Engineering, university of Aalborg. The object was to study the stability/erosion of the breakwater head and the trunk, the latter exposed to both head-on and oblique irregular waves. To avoid too...report 1989
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Van Gent, M.R.A. (author)Computations made with the numerical model Odyflocs and compared with Skylla computations. Water pressures and water movements near the surface of a berm breakwater are computed.report 1992
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Andersen, O.H. (author), Juhl, J. (author), Sloth, P. (author)Results of physical tests done at DHI on the stability and regressionof Berm Breakwaters.report 1992
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Juhl, J. (author)Overview of work done, summary of research programme.report 1992
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Andersen, O.H. (author), Norton, P. (author), Tomasicchio, G.R. (author)Investigations on reshaping of berm breakwaters. Based on test at Delft Hydraulics. Focus on incipient motion (threshold of movement).report 1992
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Allsop, N.W.H. (author)These proceedings describes the progress and results of the MAST I research project "G6-S Coastal Structures', which has addressed the techniques available for the analysis and design of coastal and harbour structures such as sea walls, revetments, and breakwaters. They sumrnarise the information collected and developments completed under the...report 1992
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Espedal, T.G. (author), Lothe, A.E. (author)It will be impossible to replace all the ferry routes with regular roads. However, looking at the social economic benefits, one will soon discover that it will pay to shorten the ferry routes as much as possible. One way of shortening the ferry links is to challenge the forces of the nature and actually place the ferry harbour out towards the...report 1994
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Holmes, P. (author), Tamburic, Z. (author)The existing Non-linear Shallow-water Wave Equation (NSW) model, from MAST I, has been re-established and is fully operational. The model has been developed to determine the flow characteristics on the slope and within the permeable layer of porous coastal structures as a result of the effects of incident waves, Figure 1. The model can be used...report 1995
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Tamburic, Z. (author), Holmes, P. (author)A series of comprehensive velocity measurements was carried out on the three dimensional model of the berm breakwater at the Danish Hydraulic Institute (DHI) in September 1995. Those measurements were a part of the research on berm breakwaters within the MAST II programme sponsored by the Commission of the European Communities. The major part of...report 1995
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Juhl, J. (author), Alikhani, A. (author), Sloth, P. (author), Archetti, R. (author)For berm breakwaters as compared with traditional rubble mound breakwaters, special measures have to be taken for the breakwater roundhead. If stone displacements occur on a roundhead, the stones will be moved in the wave direction and will loose most of their stabilising effect. A point of special concern is whether, and under which conditions,...report 1995
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Van Gent, M.R.A. (author), Petit, H.A.H. (author)A two-dimensional numerical model that can simulate plunging waves on permeable structures is described. The 'Volume Of Fluid' method is used to solve the incompressible Navier-Stokes equations (2DV). This enables simulations with very complex shapes of the free surface like those occurring in breaking waves. The model has been extended with...report 1995
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Juhl, J. (author), Jensen, O.J. (author)This paper describes the features of benn breakwaters including advantages and drawbacks in comparison to traditional rubble mound structures. A review of selected practical experience with eight berm breakwaters is described in terms of typical cross-sections and key parameters (two examples from Norway. Iceland and USA, and one from Faroe...report 1995
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Van Gent, M.R.A. (author), D' Angremond, K. (author)Wave interaction with dynamically stable structures is studied by means of a verified numerical model. The model can simulate wave motion on and in permeable structures. For dynamically stable structures, including gravel beaches, berm breakwaters and reef-type structures, a procedure is developed to simulate the natural response to wave attack....report 1995
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Juhl, J. (author)Berm breakwater structures: Workshop programme.report 1995
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Juhl, J. (author)Discussions at the 2nd MAST2 workshop.report 1995
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Hald, T. (author), Burcharth, H.F. (author), Frigaard, P. (author)As a part of the MAST II Berm Breakwater Structures, existing data from conducted laboratory tests have been reanalised. The objective was to evaluate the effect of the longshore transpsort on both the roundhead and trunk, the ht.u,er exposed to both head-on waves and oblique inegular waves varying from 15 to 30 degrees angle of incidence. 3...report 1995