Searched for: faculty%3A%22Civil%255C%252BEngineering%255C%252Band%255C%252BGeosciences%22
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Visser, J.G.S.N. (author), Nemoto, T. (author), Browne, M. (author)
This review paper discusses the latest developments in internet shopping, home delivery and the potential impacts on city logistics and alternative vehicle use. The review has illustrated the rapid changes during the past few years and the potentially important impacts on patterns of transport within urban areas. Some of the changes result in...
journal article 2014
document
Zhao, G. (author), Visser, P.J. (author), Peeters, P. (author)
Embankment breaching is a composite process coupled by hydraulic processes and sediment transport processes. Erosion is the link in the interaction between breach flow and embankment material. Surface erosion starts in the initial breach phase and triggers the initial damage of the embankment. As the surface erosion develops completely, the...
report 2014
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Fuchs, M.J. (author), Bouman, J. (author), Broerse, D.B.T. (author), Visser, P.N.A.M. (author), Vermeersen, L.L.A. (author)
The Japan Tohoku-Oki earthquake (9.0 Mw) of 11 March 2011 has left signatures in the Earth's gravity field that are detectable by data of the Gravity field Recovery and Climate Experiment (GRACE) mission. Because the European Space Agency's (ESA) satellite gravity mission Gravity field and steady-state Ocean Circulation Explorer (GOCE)—launched...
journal article 2013
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Valcke, S.L.A. (author), Polder, R.B. (author), Nijland, T.G. (author), Leegwater, G.A. (author), Visser, J.H.M. (author), Bigaj-van Vliet, A.J. (author)
Most high filler concrete studies are based on relatively high contents of powder (cement + filler) (>400 kg m-3). This paper aims to increase the total fly ash content relative to the clinker content, while simultaneously minimizing the total powder content in the concrete to values lower than 300 kg m-3. The motivation for decreasing the total...
journal article 2012
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
Zhao, G. (author), Visser, P.J. (author), Vrijling, J.K. (author)
This paper describes the hydrodynamic erosion process of undisturbed clay due to the turbulent flow, based on theoretical analysis and experimental results. The undisturbed clay has the unique and complicated characteristics of cohesive force among clay particles, which are highly different from disturbed clay and non-cohesive sand. Based on...
conference paper 2011
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Peeters, P. (author), Van Hoestenberghe, T. (author), Vincke, L. (author), Visser, P.J. (author)
The use of breach models includes two tasks: predicting breach characteristics and estimating flow through the breach. Strengths and weaknesses as well as opportunities and threats of different simplified and detailed physically-based breach models are listed following theoretical and practical criteria. According to the theoretical criteria,...
conference paper 2011
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de Vriend, H.J. (author), Havinga, H. (author), van Prooijen, B.C. (author), Visser, P.J. (author), Wang, Z.B. (author)
In this syllabus an overview is given of the basic knowledge, which is required to prepare interventions in rivers and to estimate the consequences of these interventions. The utilization of the river for human purposes and the knowledge of hydraulics, sediment transport and morphology will be treated. At the end of this syllabus some practice...
lecture notes 2011
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de Vriend, H.J. (author), Havinga, H. (author), van Prooijen, B.C. (author), Visser, P.J. (author), Wang, Z.B. (author)
Deze syllabus beoogt een overzicht te geven van de basiskennis die nodig is om ingrepen in de rivier voor te bereiden en de gevolgen ervan te kunnen inschatten. Er wordt ingegaan op het gebruik dat de mens maakt van de rivier en op de kennis van de hydraulica, het sedimenttransport en de morfologie. Aan het einde van het dictaat worden...
lecture notes 2011
document
Bisschop, F. (author), Visser, P.J. (author), Van Rhee, C. (author), Verhagen, H.J. (author)
Convential models for the erosion of non-cohesive sediments overestimate the erosion rate induced by high flow velocities. These high flow velocities occur, for instance, in breaching of embankments or dunes (flow velocities up to 10 m/s) or in jetting sand with a trailing suction hopper dredger (30 to 60 m/s). At these very large flow...
conference paper 2010
document
Tuan, T.Q. (author), Stive, M.J.F. (author), Verhagen, H.J. (author), Visser, P.J. (author)
A new process-based approach is introduced for a more efficient computation of the overflow-induced growth of an erosional channel in a noncohesive homogeneous narrow landmass such as the breach growth in a sand-dike. The approach is easy to incorporate in a 1D/2DV morphodynamic model to compute the channel growth both vertically and laterally....
journal article 2008
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Verhagen, H.J. (author), Visser, P.J. (author)
Along the North Sea coast, water levels are rising and waves are intensifying due to climate change. The best scientific evidence suggests that both phenomena are likely to accelerate over the coming decades. In some North Sea coastal areas also land is sinking and tidal heights and rates of erosion are increasing. This means that the risk of...
conference paper 2007
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Tuan, T.Q. (author), Verhagen, H.J. (author), Visser, P.J. (author), Stive, M.J.F. (author)
To increase physical insight into wave overwash processes at low-crested beach barriers, wave overtopping discharge events rather than the conventional average overtopping discharge need to be quantified. Also, in order to make intelligent use of the many empirical formulations on wave overtopping discharge at breakwaters from literature, a...
journal article 2006
document
de Vriend, H.J. (author), Havinga, H. (author), Visser, P.J. (author), Wang, Z.B. (author)
lecture notes 2006
document
Tuan, T.Q. (author), Verhagen, H.J. (author), Visser, P.J. (author)
A hydrodynamic numerical model is formulated to describe the breach erosion process of sandy barriers. The breach flow is based on the system of unsteady shallow water equations, which is solved using a robust upwind numerical approach in conjunction with the Finite Volume Method (FVM). The hydraulic jump is considered as part of the breach flow...
conference paper 2006
document
Tuan, T.Q. (author), Verhagen, H.J. (author), Visser, P.J. (author), Stive, M. (author)
For management of coastal breaching hazards it is critical to be able to assess the potential of coastal barrier breaching as a result of wave actions during storm surges (wave overwash). This phenomenon is known as the breach initiation phase; the mechanisms behind this are not very well understood. In the present study, laboratory experiments...
conference paper 2006
document
Visser, C.A. (author)
doctoral thesis 2005
document
Visser, P.J. (author)
Een verkenning van de mogelijke omvang van de bres(sen) in de Houtribdijk na een eventuele dijkdoorbraak.
report 2003
document
Visser, P.J. (author)
Dit rapport bevat een beschrijving van een studie naar de grootte van de bres die in de Afsluitdijk zal kunnen ontstaan nadat deze dijk is doorgebroken en mar de resulterende verhoging van het IJsselmeerpeil. Het doel van de onderhavige studie is een veilige (dus maximale) voorspelling van de totale te verwachten bresgrootte in de Afsluitdijk na...
report 2002
document
Visser, P.J. (author)
Een verkenning van omvang, oorzaken, toekomstige ontwikkelingen en mogelijke maatregelen.
report 2000
Searched for: faculty%3A%22Civil%255C%252BEngineering%255C%252Band%255C%252BGeosciences%22
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