Searched for: subject%3A%22Scour%255C+protection%22
(1 - 17 of 17)
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Li, Qiang (author), Wang, Xinquan (author), Gavin, Kenneth (author), Jiang, Shengxiang (author), Diao, Hongguo (author), Wang, Kangyu (author)
Extensive studies have been performed on the effectiveness of scour protection against scour erosion progression. But there is little research to date evaluating the effect of scour protection on vertical resistance behaviour of monopile foundations. This paper investigates the influence of scour protection on the vertical loading behaviour of...
journal article 2024
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Kingma, E. (author), ter Hofstede, R. (author), Kardinaal, Edwin (author), Bakker, Rebecca (author), Bittner, Oliver (author), van der Weide, Babeth (author), Coolen, Joop W.P. (author)
In the past, a large part of the seabed of the southern North Sea was covered by hard substrates, including oyster beds, coarse peat banks, and glacial erratics. Human activities, particularly bottom trawl fisheries, led to the disappearance of most of these hard substrates, resulting in the loss of its associated diverse benthic life as well...
journal article 2024
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Hageman, Evelien (author)
Over 5000 offshore wind turbine generators have been installed in the past decades. 80% of these wind turbines have a monopile foundation. Monopiles are hollow steel tubular piles with a diameter of up to 10m. The first phase of the monopile installation consists of the self-weight penetration into the seabed due to the mass of the monopile....
master thesis 2022
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Askarinejad, A. (author), Wang, H. (author), Chortis, Giorgos (author), Gavin, Kenneth (author)
The scour protection layers are usually installed around the monopiles to prevent the formation of scour hole. While extensive studies have been performed on the effectiveness of scour protection layer as mitigation measure, no study to date has been found to quantify the influence of scour protection layer on the lateral response of...
journal article 2022
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Bărbunţoiu, Teodora (author)
Deployment of renewable energy is essential to reach a carbon neutral economy. Offshore wind farms have caught the interest of many developed countries since they are an essential source of green energy. The interest of this thesis lays in the design of the foundation used for offshore wind farms, in particular the interaction between the...
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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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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Li, Zhaoyi (author)
student report 2019
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Groen, Olivier (author)
A combination of the growth of the offshore wind energy sector and the decline in both species richness and species abundance in the North Sea has inspired the goal to use the scour protection in wind farms as a means to enhance marine life. Present research has focused on general changes which are to be applied to benefit marine life. However,...
master thesis 2019
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Chortis, Giorgos (author)
Offshore wind farms are rapidly developing in Western Europe as an alternative means of clean energy. The foundation of wind-turbines in the shallow water of the Northern Sea is almost exclusively (over 87%) performed by short rigid monopiles, as an efficient and relatively cheap solution. Scour formation, meaning the soil removal around the...
master thesis 2018
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Baas, Jurian (author)
Current trends show that the offshore wind industry is evolving into deeper waters, with larger turbines and consequently larger foundations. In Europe 80% of the wind turbines are installed on monopile foundations and this is expected to be the dominant choice in the future. The shallow geology of most of the wind farms is characterized as sand...
master thesis 2018
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Beulink, Laurens (author)
In the light of the waterframework directive, the dutch organisation of rijkswaterstaat has decided to investigate the application of logs as a biological alternative for the protection and cover of both naturally developing scour holes. In this research a laboratory model was created that was designed to develop a scour hole by gradually...
master thesis 2018
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Chortis, Giorgos (author)
Wind turbines are nowadays the main means for producing renewable energy in Northern and Western Europe, and therefore research is conducted to secure their efficiency. One of the critical aspects of the windfarms is the foundation type, as it can define the functionality and the cost of each turbine. Monopiles have prevailed as the most...
student report 2018
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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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Arneson, L.A. (author), Zevenbergen, L.W. (author), Lagasse, P.F. (author), Clopper, P.E. (author)
This document is the fifth edition of HEC-18. It presents the state of knowledge and practice for the design, evaluation and inspection of bridges for scour. There are two companion documents, HEC-20 entitled "Stream Stability at Highway Structures", and HEC-23 entitled "Bridge Scour and Stream Instability Countermeasures". These three documents...
report 2012
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Van Velzen, G. (author)
This research focuses on the behaviour of a granular scour protection around piles when the bed is subjected to bed degradation. Furthermore, engineering guidelines are provided to account for bed degradation in the design of the initial scour protection. To address the behaviour of the protection, a physical model is used and to obtain the...
master thesis 2012
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Juhl, J. (author), Archetti, R. (author)
Local scour can occur at a breakwater constructed on a sandy seabed and may endanger the overall stability due to sliding of the main armour layer if the toe and scour protection is failing. The scouring pattern is a function of the water depth, wave conditions, sediment characteristics, and breakwater configuration and reflection...
report 1997
Searched for: subject%3A%22Scour%255C+protection%22
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