Searched for: subject%3A%22breakwater%22
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Molenkamp, Auke (author)
With the advance of urbanisation in coastal regions comes an increase in armoured shorelines and the destruction of coastal marine habitats. To combat this, ECOncrete Tech Ltd has developed a new eco-friendly armour unit, the CoastaLock. With its ecological advantages proven, its hydraulic performance is still largely unknown. This thesis aims...
master thesis 2022
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BACHRAS, SERAFEIM (author)
Breakwaters used to protect harbours and coastal areas worldwide are one of the most common coastal structures. The complexity of the physical processes associated with the design has led to the development of many empirical formulas while a standardized method for the selection of breakwaters’ design parameters in the EU does not yet exist. The...
student report 2022
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van Dam, Menno (author)
The authorities of the Port of Genoa have requested the construction of a new vertical breakwater for the Sampierdarena canal, as well as the subsequent demolition of part of the existing breakwater. The reason for this project is the need to expand the size of the canal, to allow larger vessels to safely use it. A choice is made for a vertical...
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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Yuksel, Yalcin (author), van Gent, M.R.A. (author), Cevik, Esin (author), Kaya, Alper Hasan (author), Ari Guner, H. Anil (author), Yuksel, Z. Tugce (author), Gumuscu, Irem (author)
The performance of high-density cubes in the armor layer of a breakwater was investigated through an experimental study. For this purpose, two different cross-sections, one with a conventional cross-section and one with a berm, were modelled in a wave flume. A total of ten tests were performed for both cross-sections. Different concrete...
journal article 2022
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van den Brekel, Evelien (author)
Living breakwaters are designed to protect the coast against flooding and erosion, whilst at the same time they enhance the local ecological system by incorporating natural reef components. This study investigates the design of a modular artificial reef developed by the company called Reefy. Reefy breakwaters will consist of interlocking blocks...
master thesis 2021
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Hogeveen, Kevin (author)
Rubble mound structures are often constructed to prevent severe wave damage to ships. By constructing the crest at a certain level, the waves are reduced such that safety is ensured. However, a large increase in sea level rise is expected in the next century due to climate change. Because of this, multiple adaptations might be necessary to meet...
master thesis 2021
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Irias Mata, Marisol (author)
The design of hydraulic structures like breakwaters and crest walls is often based on empirical formulations, physical models test, numerical models and a fair amount of expert judgement. Each technique has its own pros and cons. The main limitation of the empirical formulas is that often they have to be applied outside their range of validity....
master thesis 2021
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Goedhart, Wisse (author)
The erosion of the seabed in front of coastal structures induced by waves can lead to multiple types of failure instability or function of the structure. On this topic most research has been done into erosion in front of vertical structures. For sloping structures a knowledge gap exists in the understanding of the processes that lead to erosion...
master thesis 2021
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DERMENTZOGLOU, Dimitrios (author)
This work studies crownwalls with a fully curved face versus a vertical wall in non-breaking wave conditions. Its aim is to provide appropriate tools that can be used to compare the performance of the two structures in terms of loading and overtopping. To this end, small scaled experiments of the two structures are carried in a flume with a flat...
master thesis 2021
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Dermentzoglou, Dimitrios (author), Castellino, Myrta (author), De Girolamo, Paolo (author), Partovi, Maziar (author), Schreppers, Gerd-Jan (author), Antonini, A. (author)
Several failures of recurved concrete crownwalls have been observed in recent years. This work aims to get a better insight within the processes underlying the loading phase of these structures due to non-breaking wave impulsive loading conditions and to identify the dominant failure modes. The investigation is carried out through an offline one...
journal article 2021
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Etemad-Shahidi, Amir (author), Bali, Meysam (author), van Gent, M.R.A. (author)
Toe design is an important task for coastal engineers as it ensures the stability of the main armor layer and prevents scour in front of the armor slope. Several laboratory experiments have been conducted to investigate the toe stability using different testing approaches, i.e. damage due to a single test condition and cumulative damage due...
journal article 2021
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van Gent, M.R.A. (author)
The amount of wave overtopping at coastal structures such as vertical caisson breakwaters is strongly dependent on the angle of wave attack. The reducing effects of oblique waves on wave overtopping compared to perpendicular wave attack has been studied by means of three-dimensional wave basin tests. In these physical model tests the caisson...
journal article 2021
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Doss, Arnav (author)
Floating breakwaters are applicable in several offshore applications to protect downstream structures from excessive wave loads and to reduce their motion response. This thesis investigates the impact of the leading platform, functionally a breakwater, on the RAOs and response of the platforms behind it in frequency domain. The structures are...
master thesis 2020
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Jantzen, Casper (author)
On the seabed in front of coastal structures sediment movement takes place due to incoming waves. The erosion of sediments creates a scour hole at the toe of structures such as embankments, breakwaters and dikes. This scour hole may lead to instabilities in the main structure due to material sliding into this hole. A common method of protecting...
master thesis 2020
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Jonker, R.G. (author)
In this research OpenFOAM is used to model and determine the complex hydrodynamic behaviour of a Homogeneous low-crested structure (HLCS) consisting of cubipod artificial concrete elements. The validated model is used to gain insight in the design sensitivities of a two dimensional cross sectional layout to reduce sea wall overtopping. HLCS and...
master thesis 2020
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Winkel, S. (author)
In the current breakwater design process, not all feasible concepts can be explored due to time constraints. However, designers are also influenced by breakwaters constructed near, or at the same location as their breakwater project. But also conservative assumptions influence the breakwater design process, for instance, regarding the wave...
master thesis 2020
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van Lent, E.G. (author)
The stability of breakwaters in seismically active areas is not always guaranteed. A new approach to model a breakwater subjected to an earthquake is with PM4Sand. The goal of this research is to find if breakwaters subjected to earthquakes can be correctly modelled with PM4Sand.<br/>To investigate PM4Sand a breakwater subjected to an earthquake...
master thesis 2020
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Teeling, J.W. (author)
During a previous research project, a parametric model for conceptual layout design has been developed. The model uses optimisation using genetic algorithms to approach the optimal breakwater layout for specific locations. <br/>The developed model serves as a successful proof-of-concept. In the model, several aspects of design have been...
master thesis 2020
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Houtzager, Daan (author)
The purpose of this MSc thesis is to do an experimental study into the spatial and temporal variation of rocking armour units. Armour units on a breakwater slope under wave loading can sometimes start to move back and forth, this phenomenon is known as rocking. Rocking can lead to significant impacts between armour units, which can result in...
master thesis 2020
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