Searched for: subject%3A%22dredging%22
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Van Dijk, N.N. (author)
In this research we studied the behaviour of dredged glacial till in the creation of a landfill. An experimental approach is used where we primarily focussed on the settling and consolidation characteristics. Till is in general a well graded, non sorted material and segregation during dredging and transportation can be expected. The aims of this...
master thesis 2016
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Swart, R.N. (author)
There are many locations where the accumulation of mud poses a problem. In lakes it can have a negative influence on the ecological situation and in port basins it can hinder traffic. Usually these mud deposits are removed periodically with regular dredging vessels. Looking at the continuous nature of the mud deposition and at the trend of an...
master thesis 2015
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Brandt, J. (author), Minnee, K. (author), Kramer, V. (author), Gerrits, S. (author), Winter, R. (author)
The authorities of Argentina wish to improve the accessibility of the ports located in the Río de la Plata and upstream to the Paraná River. The water depth in the Río de la Plata is very shallow and did not suffice for vessels to navigate. Therefore navigation channels have been dredged. Ship drafts have increased in time and nowadays there is...
student report 2015
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Bleeker, N. (author)
Clay particles, known for their adhesive properties, are commonly encountered in underwater soils. When producing large quantities of sand by means of dredging, fines are a byproduct and cause important viscosity changing effects altering the sand settling behavior. Much is already known in this field but knowledge lacks in the area where sand...
master thesis 2015
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Van Oeveren, M.I.J. (author)
The Dutch shipbuilding industry has a real competitive force in building complex, specialized and multipurpose vessels (Rabobank, 2014). However, the Dutch maritime sector has to deal with strongly growing competition worldwide. For the dredging sector this implies the need to innovate in order to remain competitive. This research focuses on the...
master thesis 2015
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Palaiogianni, N. (author)
The current report aims to understand the hydro- and morphodynamic response of the Western Scheldt in a large sediment dumping operation. This study investigates the estuary’s response to sediment dumping in the Everingen channel area, which is located in the middle of the Scheldt Estuary, The Netherlands. Furthermore, it studies whether these...
master thesis 2015
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Harihar, S. (author)
Mangroves have been proven to be an asset to coastlines because of their myriad advantages relating to coastal protection and stability. Unfortunately, in the past, due to economic necessities or other reasons, many of these mangrove swamps in tropical areas came under threat and were subsequently destroyed. As the awareness about the positive...
master thesis 2015
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Combe, T.A.A. (author)
Especially for the dredging industry in the United States of America and the leading dredging company Great Lakes Dredge & Dock Company the clamshell dredge is a commonly used dredge tool. The aim of this study was production [m3/s] optimization of the clamshell bucket for stiffer clays. Different aspects of clamshell bucket geometry to clay...
master thesis 2015
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Kisoensingh, J. (author)
Over the last centuries, Dutch rivers such as the Rhine have been heavily trained for the purpose of the safe discharge of water, sediment and ice, and navigability. After the notorious flood events of 1993 and 1995 along the Rhine, new large-scale river works were initiated, such as the Room for the River (RfR) programme, to increase flood...
master thesis 2015
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Tuinhof, T.J. (author)
By its very nature dredging is an environmental impact, since dredging includes the excavation and/or relocation of sediment in a river, sea or estuary. One of the environmental impacts related to dredging is increased suspended sediment concentration (SSC) levels, forming plumes of sediment. These so called dredge plumes originate from spillage...
master thesis 2014
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Bijmolt, M.J. (author)
The development of dredging as a major player for surface mine applications has led Royal IHC, a large equipment supplier and consultant for dredging and mining operations, and the TU Delft to work on more advanced optimizations techniques for the design of dredge mines. Three implications of the design of a dredge mine were found to be crucial...
bachelor thesis 2014
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Liefferink, D.M. (author)
This version of the thesis only covers the literature study. The results analysis and conclusion of the thesis are confidential. Pipelines in arctic waters are at risk of being damaged by gouging ice masses. To protect these pipelines, they can be buried in trenches. When trenching in arctic clayey soil, sub sea permafrost can be encountered....
master thesis 2013
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Van Adrichem, H.L.A. (author)
Large-scale river projects are executed on the Dutch rivers to meet increased flood conveyance standards. Because the projects bring variation to the standardised river profile, they are expected to induce increased river dynamics. The consequences are higher dredging costs and more disruption to inland navigation. All river intervention plans...
master thesis 2013
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Bots, O.C.P. (author)
=Introduction= Worldwide there is an increasing amount of dredging activities, due to increasing demand for transport of goods over the world. These project are more and more near sensitive nature reserves and thereby a potential threat of biodiversity; which is a major concern for port developers, authorities, environmental organizations and...
master thesis 2013
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Bronsvoort, K. (author)
Sedimentation in reservoirs is a consequence of constructing a barrier in a flowing river, which results in a decrease of the transport capacity of the river. The storage capacity of the reservoir decreases due to the accumulation of sediments and the river downstream starts to erode due to the disturbance of the sediment balance. Water...
master thesis 2013
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Radermacher, M. (author)
Dredging and reclamation works are known to generate significant amounts of turbidity. In most coastal zones around the world, the resulting clouds of suspended fine sediment bring along environmental risks. Dredging contractors take mitigating measures to prevent free spreading of turbidity, which is usually also demanded by their clients and...
master thesis 2013
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Dupuits, E.J.C. (author)
Dredge plumes and ecology have become increasingly intertwined in recent history; one of the more prominent reasons behind this is the influence of clouds of fine sediments released in the open water due to dredging (`dredge plumes') on for `sensitive receivers' such as coral, seagrass and mangroves. An Environmental Risk Assessment (ERA) in...
master thesis 2012
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Vessies, W.C.N. (author)
The Maasvlakte II project is a joint venture between Boskalis and Van Oord. During the construction, they have measured the relative density for different kind of work methods, by making cone penetration tests. The result of those measurement is, that the measured relative density for the Maasvlakte II project is higher than the values that can...
master thesis 2012
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Stark, J. (author)
This is a numerical modelling study on the impact of dredging and disposal activities on the long-term morphological development of the Columbia River mouth (MCR). Dredging activities removed 120 Mm3 of sand from the MCR during the studied interval between 1958 and 1999. Only one-third of this volume was disposed in the active littoral zone....
master thesis 2012
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Becker, J.H. (author)
Nowadays, the ecological effects of dredge plumes are usually managed based on the precautionary principle. Predictions of suspended sediment levels are made, which have to be compared to thresholds set by the responsible authority. Failing to comply may cause a project to be delayed and thus lead to additional costs. The precautionary principle...
master thesis 2011
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