Searched for: department:"Hydraulic"
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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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De Heij, J. (author)
The first one who studied the problem of armour layer stability was Iribarren (1938). Iribarren derived stability criteria that were based on the acting physical processes on the slope of a structure. In the stability criteria of Iribarren only the influence of a few structural and hydraulic parameters were taken into account. In 1988 Van der...
master thesis 2001
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Van Zwicht, B.N.M. (author)
This thesis is about the influence of the specific weight on the stability of single layer interlocking armour units on rubble mound breakwaters. The hydraulic stability of the Xbloc armour unit is expressed by the stability number which is based on the assumption of dominance of lift, drag and gravity forces. If other forces have significant...
master thesis 2009
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Huijssoon, W.P. (author)
Onderzoek naar de inzet van materieel voor het transport van stenen over water, ten behoeve van de bouw van een golfbreker. Vanuit de praktijk (Boskalis) is de vraag gekomen om het bakkentransportproces, zoals dat plaatsvindt bij de bouw van offshore golfbrekers, nader te bestuderen. De reden daarvan is, dat de berekende productie met behulp van...
master thesis 1998
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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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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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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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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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Vink, H.A.T. (author)
The need for coastal structures, such as breakwaters, at great water depths is rapidly increasing as a result ofthe increasing draught of large vessels and off-shore land reclamations which can, for instance, be used for the benefit of the expansion of harbours and related industrial activities. In water depths greater than approximately 10 m...
master thesis 1997
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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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Disco, M.J. (author)
Breakwaters are used for reducing wave height in harbours or divert sediment. One of the types of breakwaters is the rubble mound breakwater. These structures are constructed with smaller quarry rock as core and larger quarry rock as outer layer. For economical reasons, the design allows some damage to the armour layer. The amount of damage is...
master thesis 2012
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Deiters, B. (author)
Dit verslag geeft een beschrijving van een onderzoek naar de golfbelasting van kruinmuren boven op breukstenen golfbrekers. Een kruinmuur is een betonnen element dat boven op een golfbreker geplaatst wordt. De voornaamste functie is het terugbrengen van de overslag zonder toepassing van zeer veel stortsteen en toplaagelementen. In dit onderzoek...
master thesis 1999
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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 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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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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Heijn, K.M. (author)
Recently, interest in vertical breakwaters has grown. The development of ports from natural small harbours to artificial large harbours facing the outer sea has demanded the construction of breakwaters in rougher seas. The vertical breakwater could play a role of importance in this development. To obtain general guidelines for the design of...
master thesis 1997
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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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Mingou, P. (author)
Breakwaters are important for the preservation and development of coastal areas. Submerged breakwaters have significant advantages compared to emerged, such as economical construction and preservation, milder effect on landscape and under conditions, preservation of marine flora and fauna inside it. The main objective of this study is to give...
master thesis 2011
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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
Searched for: department:"Hydraulic"
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