Searched for: %2520
(21 - 40 of 92)

Pages

document
Zhu, Y. (author), Visser, P.J. (author), Vrijling, J.K. (author), Wang, G.Q. (author)
Breaching of embankments has recently drawn more and more attention due to its importance in the development of early warning systems for embankment failures, in the evacuation plans of people at risk, in the design method of embankments based on a risk-approach, etc. The erosion process observed during embankment breaching tests in the...
journal article 2011
document
Hoffmans, G. (author), Verheij, H.J. (author)
This paper discusses scour without bed protection, such as propeller scour, two-dimensional horizontal, three-dimensional horizontal scour generated by free jets downstream of gates and outlets, two-dimensional vertical and three-dimensional vertical scour. The flow velocities in two- and three-dimensional propeller and free jets are briefly...
journal article 2011
document
Trung, L.H. (author)
Report on destructive overtopping tests executed with the wave overtopping simulator along the coast of Vietnam to investigate the strength of the inner slopes of grass dikes. This report presents measurement and observation results obtained during destructive tests with the simulator in Do Son, Thinh Long and Thai Thuy. After the first chapter,...
report 2011
document
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
document
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
document
Jacobs, W. (author)
‘Wetlands’ in tidal lagoons and estuaries are among the most valuable ecosystems in the world. Managing these systems requires both a thorough knowledge and validated tools to predict their behavior and development. An important morpho-dynamic process herein is the erosion (‘pick-up’) of the bed, which are in inter-tidal areas often composed of...
doctoral thesis 2011
document
Montserrat Trotsenburg, F. (author)
The aim of this thesis was to investigate how (macro)benthic organisms interact with the ecological functioning, erodibility and small- to medium-scale morphodynamics of estuarine intertidal sediment by modulating its composition and/or properties. In these interactions, scale is of great importance for the ecosystem engineers. The changes they...
doctoral thesis 2011
document
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
document
Van Prooijen, B.C. (author), Winterwerp, J.C. (author)
The linear formulation for erosion E = M(?b??c), often applied in engineering applications, has two properties, which do not always comply with field and laboratory observations, they are as follows: (1) The erosion rate is zero below the critical bed shear stress ?c and increases linearly with bed shear stress ?b, when exceeding the critical...
journal article 2010
document
Talmon, A.M. (author)
conference paper 2010
document
Montserrat, F. (author), Van Colen, C. (author), Degraer, S. (author), Ysebaert, T. (author), Herman, P.M.J. (author)
We assessed the influence of benthic communities on sediment properties in large defaunation experiments in replicated 16 m2 plots on a tidal flat in the Westerschelde estuary (SW Netherlands). We compared microphytobenthos and benthic macrofauna recovery and recolonisation between control and defaunated sediments during 8 mo following the...
journal article 2008
document
Van der Meulen, S. (author), Joziasse, J. (author), Van Meurs, G. (author), Van den Ham, G. (author), Vastenburg, E. (author)
Het Delft Cluster-project Waterkwaliteit & Calamiteiten brengt de toekomstige ontwikkeling van de water- en slibkwaliteit in beeld onder invloed van extreme gebeurtenissen (gerelateerd aan bijvoorbeeld klimaatsverandering en verandering in landgebruik) en door de mens veroorzaakte calamiteiten (zoals lozingsongelukken). Dit rapport is het...
report 2008
document
Weissmann, R. (author)
Describes a method to measure surface erosion due to currents and/or waves using laser scanning.
report 2008
document
Meijers, E.M. (author), Icke, J. (author)
report 2006
document
Zhu, Y. (author)
Numerous flood disasters occur every year worldwide, mostly resulting from failure of dikes, some with catastrophic outcomes. Examples are the dike failures along the Yangtze River in China in 1931 due to heavy rainstorms and those in the Netherlands in 1953 due to a storm surge at the North Sea. Both floods induced many deaths and enormous...
doctoral thesis 2006
document
Nguyen, N.H. (author)
The Lower Mekong River area is a zone with plenty of natural resources and it has the highest agricultural production in Vietnam. The river passes though six provinces in the Southern patt of Vietnam, with more than 16 million in habitants in total. However, serious riverbank erosion problems occur and there is no master plan or mitigation...
report 2006
document
Icke, J. (author)
report 2005
document
Pohl, C. (author)
Describes a relation between wave impact and clay strength.
report 2005
document
Salman, A. (author), Lombardo, S. (author), Doody, P. (author)
This report “Living with coastal erosion in Europe: Sediment and Space for Sustainability” has been compiled in the framework of EUROSION, under a service contract commissioned in 2002 by the Directorate General Environment (European Commission). This followed a budget amendment by the European Parliament, which requested action to be taken on...
report 2004
document
Aarninkhof, S.G.J. (author)
Owing to the economic importance of seasonal fluctuations in beach width and the frequent implementation of local beach and shoreface nourishments, coastal managers and scientists increasingly demand coastal state information at smaller spatiotemporal scales. Advanced, automated video techniques provide the means to collect such high-resolution...
doctoral thesis 2003
Searched for: %2520
(21 - 40 of 92)

Pages