Searched for: subject%3A%22turbidity%255C+currents%22
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Ali, W. (author)
Deep-sea mining Industry and academia are presently investigating the potential of deep-seamining for valuable resources such as poly-metallic nodules. Nevertheless, the process of manoeuvring, excavating, and processing these resources poses a threat to the deep-sea environment through the generation of plumes of suspended fine-grained solids,...
doctoral thesis 2024
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Alhaddad, S.M.S. (author), Elerian, M.F.A.I. (author)
Turbidity currents have extensively been explored in quiescent environments. However, during several underwater activities (e.g., dredging and deep sea mining), generated turbidity currents could travel in opposite directions and interact with each other, which could largely influence their hydrodynamics and sediment transport capacity....
journal article 2024
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Alhaddad, S.M.S. (author), Keetels, G.H. (author), Mastbergen, Dick (author), van Rhee, C. (author), Lee, Cheng-Hsien (author), Montellà, Eduard Puig (author), Chauchat, Julien (author)
This article presents the current state-of-the-art understanding of underwater dilative slope failure (breaching). Experimental investigations are reviewed, providing critical insights into the underlying physics of breaching and pointing out knowledge gaps, which underscore the need for further research. Besides, field observations at several...
review 2024
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Alhaddad, S.M.S. (author), Suleman, M. (author), Kirichek, Alex (author), Chassagne, C. (author)
Coandă-effect-based collection stands out as the foremost technology in polymetallic-nodule mining due to the absence of direct contact between the collector and the ocean floor. Yet, this collection method disturbs the ocean floor, and minimizing such disturbance is crucial from an environmental viewpoint. To this end, a solid understanding of...
journal article 2024
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Elerian, M.F.A.I. (author)
The depletion of terrestrial mineral deposits and the increasing demand for minerals are causing disruptions in the global supply chain. The shift towards renewable technologies requires significant quantities of metals used, for example, in the production of electric vehicles and wind turbines, putting additional strain on the supply chain. The...
doctoral thesis 2023
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van Pelt, Koen (author)
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master thesis 2023
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Elerian, M.F.A.I. (author), Bedón Vásquez, A.A. (author), Enthoven, D.H.B. (author), Helmons, R.L.J. (author), van Rhee, C. (author)
Renewable energy installations and energy storage solutions require a significant amount of critical raw materials such as nickel, cobalt and rare earth elements. The supply chains of these raw materials face many challenges, e.g., these materials are often found at lower grades on land. These complications motivate the search for new resources....
conference paper 2022
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Elerian, M.F.A.I. (author), van Rhee, C. (author), Helmons, R.L.J. (author)
Renewable energy installations and energy storage solutions require significant quantities of critical raw materials such as nickel, cobalt and rare earth metals. The supply chains of these raw materials face many difficulties, such as the continuous decrease of mineral ore grades on land. In view of these complications, the motivation to...
journal article 2022
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Wijmans, Yannick (author)
Recently, deep-sea mining has acquired renewed interest from commercial companies due to a rise in the demand of minerals and metals. Deep-sea mining is focussed on different minerals and rare earth elements found in the oceans that are increasingly used in the manufacturing of goods and products related to renewable energy. In order to collect...
master thesis 2021
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Enthoven, dolf (author)
Due to the increased demand for materials like cobalt and nickel, there is an interest to mine polymetallic nodules from the deep-sea. These nodules are abundantly distributed along the abyssal plains, e.g., the Clarion Clipperton Zone (CCZ) in the North East Pacific. These nodules lay spread on top of a seabed consisting of very fine clayey...
master thesis 2021
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Alhaddad, S.M.S. (author)
Underwater slope failure is a common problem in the fields of geotechnical, dredging and hydraulic engineering, posing a major risk to submerged infrastructure and flood defences along coasts, rivers, and lakes. The term ‘flow slide’ refers to a specific, complex failure mechanism of underwater slopes, which occurs when a substantial amount of...
doctoral thesis 2021
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Buffon, P. (author), Valero, Daniel (author), Uijttewaal, W.S.J. (author), Franca, M.J. (author)
abstract 2021
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Chen, Ye (author), Parsons, Daniel R. (author), Simmons, Stephen M. (author), Williams, Rebecca (author), Cartigny, Matthieu J.B. (author), Hughes Clarke, John E. (author), Stacey, Cooper D. (author), Hage, Sophie (author), Azpiroz Zabala, M. (author)
Submarine channels deliver globally important volumes of sediments, nutrients, contaminants and organic carbon into the deep sea. Knickpoints are significant topographic features found within numerous submarine channels, which most likely play an important role in channel evolution and the behaviour of the submarine sediment-laden flows ...
journal article 2021
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Elerian, M.F.A.I. (author), Alhaddad, S.M.S. (author), Helmons, R.L.J. (author), van Rhee, C. (author)
The interest in polymetallic nodule mining has considerably increased in the last few decades. This has been largely driven by population growth and the need to move towards a green future, which requires strategic raw materials. Deep-Sea Mining (DSM) is a potential source of such key materials. While harvesting the ore from the deep sea by a...
journal article 2021
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Bedón Vásquez, Andrea (author)
Turbidity currents are common in the waters around the world. They can be caused by earthquakes, collapsing slopes or other geological disturbances. However, turbidity currents can also be caused by deep sea mining activities. Deep sea mining is done with special mining vehicles. There are three main operations within this mining vehicle:...
master thesis 2020
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Empinotti, T. (author)
Deep-water siliciclastic systems are of great societal relevance as their deposits<br/>in subsurface store hundreds of billions of barrels of hydrocarbons in different sedimentary basins worldwide. The sediment density flows that form these systems, termed turbidity currents, are capable of destroying subsea installations, such as...
doctoral thesis 2020
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Weij, D. (author)
Breaching is an important production mechanism for stationary suction dredgers. It is a process occurring in submerged sandy slopes, which mostly occurs in dense sandy soils with a low permeability. The process is initiated by the formation of a slope under water, whose angle is steeper than the internal friction angle, called the breach face....
doctoral thesis 2020
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Alfaro Monge, Luis Carlos (author)
Siltation affects navigation in harbors and waterways by reducing the water depth. To regain depth and safeguard navigation, dredging is required. Water Injection Dredging (WID) is one of the available hydrodynamic dredging techniques, in which pumps on a vessel inject water at high flow velocities and low pressure into the bed and fluidize the...
master thesis 2020
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Alhaddad, S.M.S. (author), de Wit, Lynyrd (author), Labeur, R.J. (author), Uijttewaal, W.S.J. (author)
Breaching flow slides result in a turbidity current running over and directly interacting with the eroding, submarine slope surface, thereby promoting further sediment erosion. The investigation and understanding of this current are crucial, as it is the main parameter influencing the failure evolution and fate of sediment during the breaching...
journal article 2020
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Alhaddad, S.M.S. (author), Labeur, R.J. (author), Uijttewaal, W.S.J. (author)
Breaching flow slides are accompanied by the generation of turbidity currents. Measurements of these currents are critical for understanding the interaction between the turbidity current and the slope surface, as well as for the validation of numerical models. However, there are insufficient data available detailing the velocity distribution or...
journal article 2020
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