Searched for: contributor%3A%22Van%255C+den%255C+Bos%252C%255C+J.P.%255C+%255C%2528mentor%255C%2529%22
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Wevers, Toon (author)In this research the hydrodynamic stability of a ballast filled mattress under waves is investigated. There is checked if this can be applied as scour protection around a suction bucket jacket: an offshore wind turbine foundation that uses a vacuum to suck itself in position. A ballast filled mattress is a mattress made from polyester with so...master thesis 2018
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Stevens, Thieu (author)In this thesis, it is studied if the stability of a stone in a granular bed protection, can be predicted by the local output of a three-dimensional (3D) eddy resolving simulation technique.<br/><br/>In earlier studies regarding stone stability, Reynolds-Averaged Navier-Stokes (RANS) models are used to determine the loads on the bed. In the...master thesis 2018
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de Almeida Sousa, Ermano (author)Coastal areas around the world have attracted settlements and human activities since the early stages of the history until nowadays. This has introduced continuous modifications to the natural characteristics of these coastal regions by means of coastal structures and engineering interventions. The design of such coastal structures has evolved...master thesis 2017
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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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Buijs, K.W. (author)The offshore wind industry is a growing market in Europe due to the sustainable energy targets of European Union. In the coming years the Dutch government will invest in offshore wind farms at the North Sea. For a contractor like Boskalis the inclusion of favorable ecological conditions in designs is a unique selling point and can help to win...master thesis 2015
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Van der Neut, E.M. (author)When designing a rubble mound breakwater, one would like to predict the stability of the armour layer of the breakwater. For this purpose several armour layer stability formula are developed. The most reliable is considered to be the stability formula of Van der Meer (1988). With this method, the armour layer stability is predicted based on...master thesis 2015
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Hollander, W. (author)A filter can be applied to protect a bed against scour. Normally, these filters are geometrically closed, to prevent winnowing of the base material through the filter. However, geometrically closed filters are expensive and difficult to realize in the field. Geometrically open filters can serve as an alternative. Within an open filter, the pores...master thesis 2015
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Peters, R.B.M. (author)This study investigates the stability of rocks in breakwater toes. Previous studies have coupled the toe stability directly to the wave height, which is not physically accurate. In this study the local hydraulic conditions at the point of incipient motion are considered. First the forces acting on a single stone are identified. Thereafter the...master thesis 2014
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Van Heemst, C. (author)This thesis investigates the stability of a crown wall situated above SWL (Still Water Level) on top of a rubble mound breakwater. Crown walls are concrete super structures implemented commonly to provide a flat surface for pipelines and to make the breakwater accessible for vehicles. The vertical distance between SWL and the bottom of the crown...master thesis 2014
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Arets, K. (author)Het doel van dit bachelor eindproject is een antwoord vinden op de vraag of het mogelijk is door middel van het IH-2VOF model resultaten gevonden in een stroomgoot te simuleren. Dit moet worden uitgezocht omdat door gebruik te maken van dit model de teen van een golfbreker beter, veiliger en eenvoudiger ontworpen kan worden. Het onderzoek...bachelor thesis 2014
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Steenstra, R.S. (author)For the design of granular bed protections often a stability parameter is used. The stability parameter represents the forces that are acting on the stones and is used to predict the response of the bed to these forces. Existing parameters are often derived for a limited range of application. When the parameter is used outside this range, the...master thesis 2014
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Brouwer, M.F. (author)This thesis tests the influence of the under layer profile on the stability of the armour layer of concrete interlocking armour units. The analysis is aimed to offer insight into the influence of different under layer profiles on the stability of the armour layer. Furthermore the thesis includes a test of the design guideline of the under layer...master thesis 2013
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Van den Heuvel, H.P.A. (author)Pipeline covers on the seabed are called near-bed structures which are generally made of rip rap. The crest height of a near-bed structure is such that waves do not break over it. Near-bed structures are used to protect pipelines against fishing equipment, ship anchors, dropped objects and preventing destabilizing of the pipeline. There are two...master thesis 2013
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- Van der Horst, T. (author) master thesis 2013
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Verdegaal, I. (author)The permeability of a breakwater is of great importance for the stability of the armour layer. The influence of the structural permeability on the stability of rock armour units was already researched by Van der Meer using the 'notional' permeabiltiy. However, for single layer interlocking armour units the influence core permeability is rather...master thesis 2013
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Krom, J.C. (author)This thesis focuses on wave overtopping at rubble mound breakwaters with a non-reshaping berm. The research was aimed at gaining insight into the influence of a permeable berm on the overtopping behaviour. Moreover it was desired to validate existing prediction methods for the spatial distribution of overtopping for breakwaters with a non...master thesis 2012
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Papadopoulos, D. (author)Scour formation at the toe of a rubble mound breakwater can lead to abrupt failure. Nowadays, counteraction of scour via geometrically closed filter rules, geotextiles or combinations is the common practice. Alternatively, in specific cases the use of geometrically open filters can save significant amount of time and decrease constructional...master thesis 2012
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Kluwen, J.G.M. (author)Breakwaters are important objects to protect coastal- and harbour areas. To minimalize the probability of failure of breakwaters, a lot of research has been conducted concerning the stability of breakwaters. After Iribarren and Hudson, an influential research is conducted by Van der Meer. The literature research of this report will provide more...master thesis 2012
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Van de Sande, S.A.H. (author)Granular filters are used for protection against scour and erosion. For a proper functioning it is necessary that interfaces between the filter structure, the subsoil and the water flowing above the filter structure are stable. Stability means that there is no transport of subsoil material through the filter to the water above the filter, and...master thesis 2012
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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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