- document
-
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
- document
-
Lykke Andersen, T. (author), Burcharth, H.F. (author)Tests have been performed with low steepness and reshaping breakwaters at Ghent University and Aalborg University respectively. The reshaping breakwater is a type of breakwater where the information on overtopping is very limited. The additional tests are described in the following four reports: .. D24 Part A: Effect of obliqueness, short...report 2004
- document
-
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
- document
-
Van Gent, M.R.A. (author)Wave interaction with dynamically stable structures is simulated by means of a numerical model based on fmite-amplitude shallow-water wave equations. The model can simulate wave motion on and inside permeable structures. For dynamically stable structures, including berm breakwaters, reef-type structures and gravel beaches, a procedure is...report 1997
- document
-
Torum, A. (author)Measurements of wave forces on single armour units, tests on berm breakwaters in shallow water.report 1996
- document
-
Juhl, J. (author)Programme of the 3rd workshop on berm breakwaters.report 1996
- document
-
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
- document
-
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
- document
-
Jensen, M.S. (author), Frigaard, P. (author)The report summaries the results obtained with a berm breakwater attacked by oblique waves. In the tests special attention is given to the influence of the rock shape on the longshore transport. Moreover, the reshaping berm profile and amount of wave overtopping is examined. The tests were performed in a tree-dimensional model in Jan.-Feb. 96'...report 1996
- document
-
Van der Meer, J.W. (author), Vis, F.C. (author)The extensive research of Van der Meer (1988) on dynamically stable slopes, including berm breakwaters, but also rock and gravel beaches. was re-analyzed and focussed only on the behaviour of the seaward slope of berm breakwaters in Van der Meer (1992), leading to a computational model on a personal computer. Results are presented in this paper....report 1995
- document
-
Juhl, J. (author)The overall objective of the research project on berm breakwater structures is to arrive at a better design basis, which will bring the design standards of berm breakwaters up to the level of design standards for other civil engineering structures. This objective will be reached by establishing an understanding of the physics of berm breakwaters...report 1996
- document
-
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
- document
-
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
- document
-
Juhl, J. (author), Jensen, M.S. (author)The influence of permeability and stone gradation on the reshaping and wave overtopping of berm breakwaters was studied as part of this research. Another aspect studied was the difference in reshaping comparing a berm breakwater constructed of two stone classes and a more stable Icelandic type of berm breakwater built of three stone classes with...report 1996
- document
-
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
- document
-
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
- document
-
Juhl, J. (author), Burcharth, H.F. (author), D' Angremond, K. (author), Sigurdarson, S. (author), Holmes, P. (author), Torum, A. (author), Lamberit, A. (author)A research project on berm breakwater structures was carried out with the overall objective of arriving at a better design basis. Eight European organisations from Denmark, The Netherlands, United Kingdom, Norway, Italy and Iceland participated in the joint research project co-sponsored by the European Commission under the second research and...report 1997
- document
-
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
- document
-
Juhl, J. (author)Note on the roundhead stability of berm breakwaters. Recession, erosion and longshore transport are measuredreport 1996
- document
-
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