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Azikci, M.A. (author)
The Van der Meer formula for amour stability takes the Iribarren number, number of waves and damage level into account. It also contains a factor P which describes the “notional permeability” of the breakwater. This factor is based on the fact that a more permeable structure dissipates more energy and hence requires less heavy armouring. Its...
master thesis 2015
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Piccoli, C. (author)
This report presents the results of an Additional MSc Thesis as part of the Master Programme of Hydraulic Engineering from the Delft University of Technology Civil Engineering and Geosciences Faculty. The objective of this additional graduation work is to provide a better insight on economical optimization of breakwaters. Information about the...
master thesis 2014
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Roelofs, M. (author)
Research to the technical and financial feasibility for a partly demobilization of a wave reducing device (breakwater) to survive extreme wave loads, with a case study for the island of Sint Maarten, Netherlands Antilles.
master thesis 1998
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Verpoorten, S.P.K. (author)
Seaports are often protected against waves and currents by rubble mound breakwaters. At the interface between outer breakwater slope and seabed a toe structure is often build, which provides stability to the outer slope. The toe consists of a relatively small heap of rock. Since 1977 dedicated studies are made to the stability of these rock...
master thesis 2015
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Le, T.N. (author)
Prototype single layer armour units on a breakwater slope are observed to break. To predict when breakage occurs, the objective of this research project is to obtain knowledge on, and measurements of the rocking behaviour and failure mode of single layer armour units. A single cube on a breakwater slope is subjected to investigations. An...
master thesis 2016
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Garcia Beses, A.J. (author)
Nowadays the most important sectors in the strategy for the future of the port of Rotterdam are container handling, chemicals and distribution. To offer these sectors the opportunity to grow and renew, space is needed. By means of the construction of Maasvlakte II this space can be given. This land reclamation is planned to be located in the...
master thesis 2005
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Vervoorn, H. (author)
Since the awareness that the conventional energy sources will run short, the use of various renewable energy sources has been investigated, these are solar, wind, ocean and geothennal energy. Quite some countries are interested in wave energy conversion. In several countries some full-scale wave energy converting pilot plants have been tested....
master thesis 1997
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Van Broekhoven, P.J.M. (author)
In JUMELET [2010] a method with a physical basis (so called “Volume Exchange model”) to determine the ‘notional’ permeability coefficient P was developed. The ‘notional’ permeability coefficient was previously introduced in the stability formula of the armour layer; see VAN DER MEER [1988]. In this latter study this coefficient was empirically...
master thesis 2011
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Verweij, A.P. (author)
Vertical breakwaters are used in the design of harbours to create a protective area. This protective area can be an approach channel or the harbour itself. Because of large new projects, such as Maasvlakte 11 in the Netherlands and the increasing sizes of ships, many harbours have to be placed in deep water. Deep water requires higher...
master thesis 1997
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Voortman, H.G. (author)
In Europe the interest in and the importance of vertical breakwaters is growing. A central point is the optimal geometry, e.g. the width and height of the breakwater caisson chosen such that the total costs over the lifetime of the structure are minimized. Probabilistic design tools provide several methods to determine the probability of failure...
master thesis 1997
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Schepers, M.R. (author)
In een gebied als Nederland met een relatiefflauw oplopende kust, heeft de conventionele stortstenen golfbreker in het verleden de voorkeur gekregen boven andere typen golfbrekers. Binnen de brekerzone wordt de golfhoogte begrensd door de waterdiepte, wat de keuze ten aanzien van de conventioneIe stortstenen golfbreker bevestigt aangezien de...
master thesis 1998
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Van de Koppel, M.A. (author)
Interlocking, single layer concrete armour units are placed in a specific grid depending on the type of armour unit. Within this grid, armour units are placed in horizontal rows. The number of horizontal rows of single layer armour units on a breakwater is limited to 20. This limit is proposed in order to prevent major settlements, which might...
master thesis 2012
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Heuts, R.A.R. (author)
Along the northern coast of Morocco order has been given for the construction of a large transshipment port in the Mediterranean Sea, at a designated project location around the city of Nador. On this green-field coastal stretch a new transhipment port will have to be developed for various types of cargo. Throughputs of the terminals will have...
master thesis 2010
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Kik, R. (author)
The stability formula developed by Van der Meer is used for the design of different kind of rock slopes. In the formula is among a number of other parameters also the permeability of the structure represented. A more permeable structure has the ability to dissipate more water and therefore more energy, this results into a lower required weight...
master thesis 2011
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Van Buchem, R.V. (author)
In an attempt to reduce the cost of breakwaters, several elements have been developed. Examples are Accropodes, Tetrapods and concrete cubes. Previous tests were performed with armour layers consisting of a double layer of cubes. This study is based on a single layer of cubes. The great benefit of a single layer of cubes is that it reduces the...
master thesis 2009
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Lioutas, A.C. (author)
The overtopping empirical formulas calculate the discharge only at the top of the crest of a coastal protection structure. On the other hand, the tolerable overtopping discharges are defined at certain points behind the crest where the total overtopping is reduced. The scope of this thesis is to find an empirical formula to describe the...
master thesis 2010
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Van den Bosch, A.F.M. (author)
Door de jaren heen is er veel onderzoek gedaan naar golfbrekers en de stabiliteit van de 'armour layer'. Hieruit is gebleken dat de plaatsingsdichtheid van de 'armour layer' elementen een belangrijke parameter is. De doelstelling van dit onderzoek is om inzicht te verkrijgen in de invloed van de plaatsingsdichtheid op de stabiliteit van kubussen...
master thesis 2001
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Zwanenburg, S.A.A. (author)
The dimensions of single layer concrete armour units (interlocking armour units) are calculated with a similar stability relation as the stability relation for quarry stone. In these design formulas an 'average/significant' wave load is used (Hs). Since quarry stone gains its stability only from gravity, this type of armour unit is constructed...
master thesis 2012
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Van Epen, D. (author), Nieuwenhuijs, J. (author)
From the ten breakwaters we selected, on the amount of reliable information available, one breakwater in Richards Bay, South Africa. The preliminary check, made in the first phase, showed the design of this breakwater was rather conservative. From surveys done on the breakwater although, it appeared that the armor-layer was damaged in storms...
master thesis 1989
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Hellinga, L.B. (author)
Breakwaters with single layer concrete armour are very commonly applied nowadays. Much research is available on the stability of single layer armour units on the seaward slope. However, rear slopes design methods for single layer armour units are rare. On rear side slopes usually similar sized units as on the seaward slope are applied. Limited...
master thesis 2016
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