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Van Aalten, J.V. (author)Thesis on a method to construct a dam by pumping sand under a geotextile, and allowing the water to flow trhough the geotextile, while the sand is contained. It is a variation on the geotube. The advantage is that less sand has to be used.master thesis 1986
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Spierenburg, S.E.J. (author)The final objective was to evaluate the stability of an offshore pipeline from a geotechnical point of view. On the Dutch part of the Continental Shelf pipelines are used for the transportation of oil and gas and utilities liRe glycol. The mean waterdepth on this part of the North Sea varies from 20-40 meters. As this region is a major fishing...master thesis 1987
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Klomp, W.H.G. (author)Weinig is bekend omtrent de interacties tussen korrels en vloeistof in een hoog-geconcentreerd zand-watermengsel, zoals dat in een slurry-stroom (zandsluitingen en zettingsvloeiingen) of bij sheetflow (bij zandtransport door golven aan de kust) optreedt. In dit rapport worden de resultaten gepresenteerd van experimenten, waarin deze interacties...master thesis 1990
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Veldhuis, A. (author)Als gevolg van ontgraven, transporteren en verwerken van zand treden volumeveranderingen op. Om deze volumeveranderingen te kunnen berekenen moet de dichtheid in verschillende situaties bekend zijn. Over de situatie 'de dichtheid van zand net nadat het op een vrachtwagen geladen is' is nog erg weinig bekend. Vandaar dat deze situatie met een...master thesis 1992
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Van der Salm, R. (author)Tijdens de zandwinning op zee wordt er gebruik gemaakt van sleephopperzuigers. De sleephopperzuiger laat het overtollige proceswater overboord stromen. Het mengsel dat overboord stroomt wordt overvloeiverlies genoemd. Dit rapport geeft een beschrijving van de bevindingen van een literatuurstudie naar de verspreiding van het overvloeiverlies dat...master thesis 1998
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Halter, W. (author)Filterconstructies hebben als doel erosie te voorkomen in bepaalde delen van waterbouwkundige kunstwerken. Ze zijn opgebouwd uit een basislaag en een of meer filterlagen. Er zijn verschillende soorten filterconstructies. Ze worden over het algemeen zo gemaakt dat er geen erosie zal optreden van basismateriaal. Het is echter efficienter om een...master thesis 1999
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Broere, D. (author)In this report a breach erosion model for earth dams is presented. Descriptions of historical earth dam failures and data of (field) experiments are used to form a model in which the geometric development of the breach is emphasised. Three components form the basis of this model: 1. A water balance in which the inflow into the upstream reservoir...master thesis 1999
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Klein, M.D. (author)Large-scale, marine sand mining in front ofthe Dutch coast might be necessary in the near future in order to meet the needs of sand for regular engineering works and/or for a possible second Maasvlakte or a national airport on an artificial island. In order to make a socio-economically and environmentally sound decision with respect to location...master thesis 1999
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Van der Vorm, J.P. (author)Het onderzoek is erop gericht het bresgedrag van zand, wanneer dit in lange rechte sneden hydraulisch wordt ontgraven, te analyseren. De bresvorm rond de winkop bepaalt het profiel dat wordt ontgraven. De optredende mengselstroomgrootheden, de snelheid, de hoogte en de concentratie, zijn van belang voor de optredende bresmors. Deze bresmors...master thesis 2000
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Moyés i Polo, M. (author)During the second half of this century offshore sand extraction has become commonplace. There has been an important increase of sand demand to use on construction and coastal protection as well as for industrial purposes. On the other hand, the development in the dredging field has helped to the expansion of the process. Since nearshore dredging...master thesis 2000
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Burgmans, S.H. (author)De sleephopperzuiger is een vrijvarend schip dat natte grond verzet. De sleephopperzuiger kan zijn lading lossen door deze via de boeg door een nozzle (tromp) te lanceren. Deze losmethode heet rainbowen. Rainbowen van medium en grof zand is gebruikelijk, wat wil zeggen een korreldiameter van 200 µm tot 2000 µm. Bij rainbowen bestaat er grote...master thesis 2003
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Te Grotenhuis, R. (author)The construction of a new metro line in the city centre of Amsterdam, the so-called Noord/Zuidlijn, is a challenging job as many buildings along the route are sensitive to settlement and angular distortion. To prevent damage, settlement criteria are very strict and mitigating measures are necessary at several locations to meet the criteria. One...master thesis 2004
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Ockeloen, W.J. (author)Thesis study into an alternative design for breakwaters made of granular materials like sand and quarry stone. In this design, the breakwater is constructed of a sand core and a layer of large stones directly on top of it, without the traditional filter layers in-between. The single layer of stones serves as one open filter layer that has to...master thesis 2007
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Van Kruchten, Y.J.G. (author)The potential ecological effects of the sand mining activities for Maasvlakte 2 have been identified in an Environmental Impact Assessment (EIA). One of the identified effects in this EIA was an impact on the number of sea ducks in the Natura 2000 area 'Voordelta'. The sand mining activities will cause an increase of the silt concentration along...master thesis 2008
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De Fockert, A. (author)The aim of the Strength and Loading of Coastal Structures (SBW) project is to improve the models to derive the Hydraulic Boundary Conditions which are determined along the Dutch coast once per five years. The Amelander inlet is chosen as area of interest in the Wadden Sea. As the Amelander Inlet is morphologically a very active area, this study...master thesis 2008
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Navarro Martin, P. (author)Fairway Maintenance of the river Ijssel The inland trade is a very important economical activity in The Netherland. Therefore to maintain and improve waterways is a common activity. The main problems that threaten the safety in the shipping are the erosion and sedimentation on the banks, especially in the bend banks. So some studies are...master thesis 2008
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Chi, N.T. (author)When a pile is driven into soil, the soil is pushed away which results in significant changes in both stress state and strain state. Using Finite Element Code to simulate the pile installation process has been not yet completely successful partly due to the limited knowledge of the governing behavior of the soil around a displacement pile. An...master thesis 2008
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Van Aalderen, M.W. (author)Royal Boskalis Westminster nv is an international group with a leading position in the world market for dredging services. In most practical cases a jet installation or a big discharge aperture is used for the fast unloading of a load of sand. When a relative small discharge opening, without the use of a jet installation, is used to unload a...master thesis 2009
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Narayan, S. (author)A study of the effectiveness of mangroves in attenuating cyclone- induced waves was done using the SWAN 40.55MOD numerical model. Hydraulic parameters during extreme events and local mangrove vegetation parameters were estimated for the Kanika Sands mangrove island near the upcoming Dhamra Port in Orissa, India. Simplified generic analyses were...master thesis 2009
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Lupogo, K. (author)In dredging works, fines are encountered in different ways. Fines can be produced during the cutting of rocks or can be found in natural deposited sand. The presence of fines in sand soil is generally recognized as problem in geotechnical engineering. It is believed that fines in a sand increases soil compressibility and tendency to creep. Also...master thesis 2009