Searched for: department:"Hydraulic"
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Enschedé, M. (author), Van Looij, Z. (author), Van der Meer, R. (author), Van Oorschot, H. (author), Oudshoorn, R. (author), Stevens, T. (author)
In the southern part of Vietnam, where the lower Mekong Delta is located, coastal erosion problems occur. In the Bạc Liêu province, one of the twelve provinces in the Mekong Delta, the width of the mangrove belt between the sea dyke and the sea is reduced by 100 m in the last four years. By rehabilitation of the mangrove forest, the hinterland...
student report 2017
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Salauddin, M. (author), Broere, A. (author), Van der Meer, J.W. (author), Verhagen, H.J. (author), Bijl, E. (author)
A new and symmetrical single layer armour unit, the crablock, has been designed in the UAE. One breakwater was reconstructed with crablock, but very limited testing had been performed. Just to become more acquainted with this new unit, pre-competitive research at a university has been performed, which is the subject of this paper. Being a new...
conference paper 2015
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Van der Meer, A.W. (author)
In the dimensional averaged numerical models, that are used for practicle purposes, there need to be accounted for three-dimensional processes. Amongst others a bank shear stress parameterization need to be incorperated. This master thesis focusses on the outer-bank shear stress in order to obtain a parameterization for the outer-bank shear...
master thesis 2015
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Trung, L.H. (author), Van der Meer, J.W. (author), Verhagen, H.J. (author)
Little is known about the strength of the land-side slopes of the Vietnamese sea dikes under overtopping attack. Some grass-covered slopes were tested by a wave overtopping simulator. The paper describes the simulator and presents the test results. The tested grass covers could withstand overtopping rates varying from 20 l/s to 100 l/s per meter...
journal article 2014
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Van der Meer, J. (author)
The port of Beira is an essential driver for economic growth in Mozambique. Its location, with strong connections to the hinterland, creates a promising future for the further development of the port. The port authority requires a new port master plan in order to optimise throughput over available ground and (wet) infrastructure, and to extend...
master thesis 2013
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Jonkman, S.N. (author), Van der Meer, M.T. (author), Hardeman, B. (author)
Een verkenningsmissie na de overstromingen in Thailand in 2011 heeft meer inzicht gegeven in het functioneren van het waterkeringssysteem tijdens de ramp. Dijken bleken kwetsbaar door overloop, evenals de aansluitingen tussen dijken en constructies.
journal article 2012
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Kik, R. (author), Van den Bos, J.P. (author), Maertens, J. (author), Verhagen, H.J. (author), Van der Meer, J.W. (author)
Different layer design of a rock slope and under layers has a large effect on the strengths on the rock slope itself. In the stability formula developed of VAN DER MEER [1988] this effect is represented by the term Notional Permeability with symbol P. A more open, or permeable, structure underneath the armour layer has the ability to dissipate...
conference paper 2012
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Trung, L.H. (author), Verhagen, H.J. (author), Van der Meer, J.W. (author), Cat, V.M. (author)
The landware slopes of sea dikes in the north of Vietnam are steep and solely constructed by soil covered with grass due to the budget constraints and also the out-of-date design guidelines.The resistance against erosion due to wave overtopping of several grass covered slopes were tested with the Wave Overtopping Simulator to show if a slope...
conference paper 2012
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Trung, L.H. (author), Verhagen, H.J. (author), Van der Meer, J.W. (author)
The Simulator was applied to test the resistance against wave overtopping of grass covered dike slopes in Viet Nam. Observation and measurement during destructive tests were performed to investigate the development process of damage induced by overtopping flow. Damages were likely to be initiated at transition of either geometry or materials, at...
conference paper 2011
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Van der Meer, C. (author), Mosselman, E. (author), Sloff, C.J. (author), Jagers, B. (author), Zolezzi, G. (author), Tubino, M. (author)
Local geometrical perturbations of alluvial channels can generate a pattern of non-migrating bars and pools. This phenomenon is known as “overdeepening”, because the pools locally enhance the scour in river bends. Overdeepening occurs only downstream of a perturbation if the channel is in the subresonant and subcritically damped regime, which...
conference paper 2011
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Trung, L.H. (author), Van der Meer, J.W. (author), Luong, N.Q. (author), Verhagen, H.J. (author), Schiereck, G.J. (author)
The resistance of various grassed slopes against wave overtopping has been appraised by means of the Wave Overtopping Simulator in situ for a couple of years in Viet Nam. Destructive test results show that a dike slope covered with grass could suffer a certain overtopping discharge not smaller than 20 l/s per m. During testing it was difficult...
conference paper 2011
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Van der Meer, J.W. (author), Hardeman, B. (author), Steendam, G.J. (author), Schüttrumpf, H. (author), Verheij, H.J. (author)
Wave overtopping discharges at coastal structures are well described in the EurOtop Manual (2007), including the distribution of overtopping wave volumes. Each volume that overtops a dike or levee will have a certain flow velocity and depth record in time, often given by the maximum velocity and flow depth. This paper describes some further...
conference paper 2011
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Trung, L.H. (author), Van der Meer, J.M. (author), Schiereck, G.J. (author), Cat, V.M. (author), Van der Meer, G. (author)
Sea dikes in Viet Nam have been built up during a long history. Every year, about 4 to 6 storms attack the coast and cause severe damages of the sea dikes. Till now, little is known about strength and stability of the inner slope covered with grass under impacts of wave overtopping during storm surges. Destructive tests have been performed with...
conference paper 2010
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Bosman, G. (author), Van der Meer, J.W. (author), Hoffmans, G. (author), Schüttrumpf, H. (author), Verhagen, H.J. (author)
Recently, formulae have been derived for maximum flow depths and velocities on the crest and inner slope of dikes or levees at wave overtopping. Two independent physical model test programs in different wave flumes showed, however, a large difference in the results. The present paper clarifies this discrepancy and shows that the empirical...
conference paper 2008
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Van Oosten, R.P. (author), Peixó Marco, J. (author), Van der Meer, J.W. (author), Van Gent, M. (author), Verhagen, H.J. (author)
The European Union funded project DELOS was focused on wave transmission and an extensive database on low-crested rubble mound structures was generated. During DELOS, new empirical wave transmission formulae were derived. These formulae still showed a considerable scatter due to a limited number of parameters included. Neural networks based on a...
conference paper 2006
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Van der Meer, R. (author)
Together with the amount of transported containers, the size of the container vessels increases. With the size of the ships their draught also becomes larger. At the moment Germany does not have a harbour, suitable to receive these large container vessels. The idea has risen to design and construct a new deep-water port. The authorities took...
master thesis 2002
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Van der Meer, T. (author)
Vanuit de veiligheidsfilosofie worden de nieuwe boortunnels in Nederland (zowel spoor- als autotunnels) doorgaans uitgevoerd met dubbele tunnelbuizen, waarbij de rijrichtingen gescheiden zijn. lo zijn frontale botsingen niet mogelijk en wordt voorkomen dat een opgetreden incident gevolgen heeft voor de andere rijrichting. Vanuit de...
master thesis 1999
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Van der Meer, R.R. (author)
In dit verslag is de aandacht vooral uitgegaan naar het noordelijke landhoofd van deze tunnel. De Blankenburg zal onder de Nieuwe Waterweg komen te liggen, nabij Maassluis (noordelijke oever) en Rozenburg (zuidelijke oever). Momenteel is het nog niet zeker of er een nieuwe ondergrondse oeververbinding onder de Nieuwe Waterweg gerealiseerd zal...
master thesis 1989
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Van der Meer, M.T. (author)
Een aanzet wordt gegeven voor het gebruik van probabilistische rekentechnieken bij de dimensionering van damwandconstructies. Hiertoe wordt een probabilistische advanced level II-berekening toegepast op een damwandconstructie die met de gangbare veiligheidsfactoren met de methode Slum is ontworpen. Er wordt alleen gekeken naar de gebruiksfase...
master thesis 1988
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Van der Meer, M.T. (author), Meermans, W. (author)
In de ontwerppraktijk wordt de stabiliteit van grondlichamen onderzocht m.b.v. een glijvlakanalyse. Bij zo'n analyse wordt verondersteld, dat een deel van het grondlichaam over een bepaald vlak kan afglijden. Er worden zekere vooronderstellingen omtrent de vorm van dat vlak gemaakt, d.w.z. dat het een plat vlak is, of een cirkelcilinder, etc....
report 1984
Searched for: department:"Hydraulic"
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