Searched for: subject:"breakwater"
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Damdam, Khaled (author)
Coastal zones have been a dynamic area and most favoured locations utilized for living, leisure, recreational activities, tourism, commerce and many other human activities. Submerged and floating breakwaters have been used as effective systems to protect these zones from wave attack. However, they are only effectively functional if the incident...
master thesis 2019
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Raza, Nauman (author)
A vast majority (84%) of all countries in the world have coastlines and 80-100% of their population resides within 100 km of the shoreline. Studies show a major growth in population in low-elevation coastal zones and a scenario of rising sea level may force millions of people to relocate. To deal with the increased frequency of extreme events...
master thesis 2019
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Grigoris, Xenofon (author)
The XblocPlus (referred to as Xbloc+) is a new, uniformly placed single layer armour unit, developed by Delta Marine Consultants (BAM Infraconsult). Although a breakwater armour layer with XblocPlus combines material saving and easy placement with increased stability, the transition between the armour layer and the crest is...
master thesis 2019
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Zaalberg, Piet (author)
OpenFOAM allowed the author to simulate a large number of scenarios in which the influences of cross-shore profile shape, cobble porosity, cobble diameter and layer thickness on wave overtopping were examined. Four validation runs and six simulations to map the sensitivity are compared with data from two physical experiments conducted in the...
master thesis 2019
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van der Hoek, Alexander (author)
The aim of the Building with Nature (BwN) design philosophy is to improve on a traditional approach for infrastructural projects by utilising natural processes to create benefits for society and nature. In a fast-changing world where climate action is becoming increasingly important, there is need for an innovative approach in large...
master thesis 2018
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Patil, Akshay (author)
During the 2011 Great East Japan Tsunami, the world’s deepest breakwaters in Kamaishi and Ofunato, which had been designed to reduce tsunami damage, partially failed after over-topping. The failure was due to a combination of sliding, over-topping induced foundation scour and foundation bearing capacity failure. Hindcasting this failure required...
student report 2018
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Janssen, Danny (author)
In the past humans used to protect their shores mainly with rocks. In the past decades the shore protections did gently shift to concrete element protections. An example of an often applied concrete armour unit is the Xbloc. This element is quite strong and well investigated. BAM Infraconsult has developed a uniformly placed armor unit, the...
master thesis 2018
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Baez Rivero, Inés (author)
The work presented will investigate the usage of Oscillating Water Columns (OWC) in Coastal Structures to understand the functionality requirements and the viability of installing these devices in caisson breakwaters. The main focus is put on the efficiency of the design, to achieve optimum results and to avoid possible failure of the structure....
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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van den Berg, Ileen (author)
The XblocPlus is a new type of single layer armour unit for breakwaters. The key difference between earlier single layer armour units is that the unit is not only placed in a regular grid, but also with a regular orientation. The main benefit of this is that it can directly be seen whether the unit is placed correctly. Additionally,...
master thesis 2018
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Schilder, Simon (author), Harteveld, Rens (author), van Vliet, Marc (author), Odijk, Maik (author)
Tourism is one of the main sources of income of Jamaica. . However, at the moment the beaches are retreating. An example is the erosion of Hellshire Beach, showing a retreat of ten meters in only seven years. To preserve the beaches effectively, a new concept is requested. The main requirements of the system are wave attenuation and the marine...
student report 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
year. Besides these...
master thesis 2018
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Drouen, Niels (author)
Breakwaters are hydraulic structures used to create calm and steady environments for moored ships in harbors. They dampen the wave by dissipating the energy through wave breaking. Most studies of breakwaters have only been carried out on the seaward slope of the structure. However, few have conducted research on the landward-, inner-, slope of...
master thesis 2018
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Hofland, B. (author), Arefin, Syed Shamsil (author), van der Lem, Cock (author), van gent, Marcel (author)
This paper describes a method to measure the rocking motion of lab-scale armour units. Sensors as found in mobile phones are used. These sensors, data-storage and battery are all embedded in the model units, such that they can be applied without wires attached to them. The technique is applied to double-layer units in order to compare the...
conference paper 2018
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Rietberg, Dolf (author)
Shore-normal breakwaters are constructed in coastal zones both for beach protection (erosion reduction) and port development (wave sheltering). These breakwaters have an effect on the waves, the (wave-driven) currents and hence, the sediment transport along the coast. The waves and tide force an equilibrium sediment transport along the coast in...
master thesis 2017
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Shen, Y. (author), Lindenbergh, R.C. (author), Hofland, B. (author), Kramer, R. (author)
For better understanding how coastal structures with gentle slopes behave during high energy events, a wave attack experiment representing a storm of 3000 waves was performed in a flume facility. Two setups with different steepness of slope were compared under the same conditions. In order to quantify changes in the rock slopes after the wave...
conference paper 2017
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Hofland, B. (author), Rosa-Santos, Paulo (author), Taveira-Pinto, Francisco (author), Lemos, Rute (author), Mendonça, A. (author), Juana Fortes, C (author)
This paper studies novel ways to evaluate armour damage in physical models of coastal structures. High-resolution damage data for reference rubble mound breakwaters obtained under the HYDRALAB+ joint-research project are analysed and discussed. These tests are used to analyse the way to describe damage, the influence of the sequence of testing,...
conference paper 2017
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Vos, Amber (author)
In this MSc thesis it is investigated how the first version of concrete armour unit Xbloc+, Xbloc+ v1, acquires its stability. The stability mechanisms are investigated by conducting two type of physical model tests. First, 23 dry pull-out tests are done to obtain insights into the aspects and mechanisms that influence the...
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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Disanayaka Mudiyanselage, Sanduni (author)
The sliding force was a contributing factor to the displacement of caissons from the Kamaishi composite breakwater during the Great East Japan tsunami 2011 (Arikawa et al., 2012). The pressure reduction on the landward wall of the caisson due to non-aeration of the overflowing jet gives rise to an additional horizontal force which increases the...
master thesis 2017
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