Searched for: contributor%3A%22Van%255C+den%255C+Bos%252C%255C+J.P.%22
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Ławniczak, Aron (author)Coastal areas face increasing threat from erosion. The use of coastal protection structures is imperative to counter this. Concrete “armouring” is widely used due to durability and cost-effectiveness. Conventional methods of “armouring” result in habitat degradation and loss of biodiversity. ECOncrete developed Coastalock, an armour unit...master thesis 2024
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Buis, Lisanne (author)In this research, the influence of the permeability and the porosity of artificial reefs on wave transmission and the sheltered habitat of marine life is investigated. A physical model is used to find the answer to this question. <br/>The main finding of this research is that a hollow, perforated structure can act both as an artificial reef that...master thesis 2022
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Diederen, Carolien (author)The objective of this master thesis is to investigate experimentally how non-breaking wave loading affects the stability of the MOSES artificial reefs, an artificial reef by the company ReefSystems. Small scale wave flume tests with a length scale factor of 20 were conducted in the Scheldt flume at Deltares in Delft to determine the stability of...master thesis 2022
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van Gemert, Mats (author)The Eurocodes are design codes, widely accepted throughout Europe, that provide guidelines on how to deal with loads, resistance, and uncertainty. For most type of structures, loads and materials, the Eurocode has been well developed. However, for the loads on coastal structures, caused by wave, water level and current actions, no such Eurocode...master thesis 2022
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Wauben, Chris (author)The Twin Dike project is an innovative concept to achieve the required flood safety while being able to preserve valuable areas. A lower, second dike is constructed behind the original existing dike. The original dike is only being strengthened to a minimal extent. The general idea behind this project is to more efficiently use the area near the...master thesis 2019
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de Jong, Han (author)Constructing a dam across a tidal basin has alway been a long-term integral solution to many water related problems of the surrounding area such as flooding, river control and fresh water storage. However, immense challenges are accompanied with the closure works of large basins. This research treats the closure strategy to close the Gulf of...master thesis 2018
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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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Tutein Nolthenius, Raoul (author)Currently, sand retaining rubble mound structures are often constructed with geotextiles, lining the interface between the core material and the sandfill. These geotextiles are placed to make sure the sand from the sandfill is not flushed out through the core by incoming hydraulic forces from the surrounding water. It is proposed that...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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Peters, Jochem (author)The coastal waters of Nigeria are a difficult environment to build structures to control the local morphology and hydrodynamic conditions to ones desire. This difficulty is a consequence of the persistent high-energy swell wave climate and Longshore Sediment Transport (LST) in the order of one million cubic metres per<br/>year. Besides these...master thesis 2018
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de Ridder, Menno (author)One sixth of the world's coastline consist of coral reefs and provide natural flood defence for the people who live in the coastal region behind the reef. However, a rising sea level, changing wave conditions and degradation of corals threaten the coastal safety of these reefs.Numerical models can be applied to study the reef-hydrodynamics and...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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Arefin, Syed Shamsil (author)Rocking behavior of breakwater research was conducted by Centre for Civil Engineering Research and Codes workgroup CUR C70 (1989) and after that no further validation of the research work has been done. In order to understand the rocking behavior and validate the previously conducted research CUR C70 (1989) wave flume test has been conducted in...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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Peters, R.B.M. (author)The IH2VOF model can be used to simulate wave-structure interaction. This additional thesis aims to evaluate the performance of the IH2VOF model for determining the local hydraulic properties (flow velocities and water pressures) near the toe structure of a rubble mound breakwater. Firstly, the model is introduced and the appropriate...student report 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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