Large scale embankment breach experiments in flume

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...

A breakthrough with multifunctional unbreachable dykes: A case study analysis to enable implementation of multifunctional unbreachable dykes to increase cost-effectiveness of Dutch flood protection

The Netherlands is not well protected against flooding and limited budget it available for improvements. Therefore, this research investigates in what way the cost-effectiveness of Dutch flood protection can be improved with the use of multifunctional unbreachable dykes. The multifunctional unbreachable dyke, a dyke combined with additional user...

Breach initiation by the response of coastal barriers during storm surges

The present paper is concerned with the processes of coastal barrier breaching with focus on the breach initiation induced by high activity of tropical cyclones in the northern and central coast of Vietnam. The breach initiation by the response of coastal barriers during storm surges can also be a common practice encountered in many coasts...

Breach growth in clay-dikes

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...

Groei bres in Afsluitdijk na dijkdoorbraak

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...

Coastal erosion along the sand barrier: Case study in Hue, Vietnam

The problem in coastal erosion is wide spread in areas located in the coastal environment. However, in many developing countries, planning and coastal management have not gained much process due to several factors, one of which is the lack of understanding the influences in the coastal system. Vietnam is no exception to this problem. Located on...

Numerical simulation of breach growth in sand-clay dikes

In the Netherlands mathematical models have been applied to represent the breach growth in sand dikes (Bres model (Visser 1998) and Breach model (Steetzel and De Vroeg 1998)). They were also applied to clay dikes in order to adapt and extend them. However these models contain empirical parameters and assumptions that restrict their application...

Het Zwin, successen en lessen: Bresgroeiexperimenten op 6 en 7 oktober 1994

Op 6 en 7 oktober 1994 hebben twee grootschalige damdoorbraakexperimenten plaatsgevonden in Het Zwin in Zee uwsch-Vlaanderen. Vooral het eerste experiment op 6 oktober heeft veel publicitaire aandacht getrokkcn. Op het beslissende ogenblik, het begin van de proef rondom het tijdstip van hoogwater, verliep deze proef niet volgens verwachting. Het...

Meetverslag Bresgroeiproeven Zwin 6 en 7 oktober 1994

Gedetailleerd meetverslag van alle metingen uitgevoerd door de meetdienst zeeland tijdens de dijkdoorbraakproef (breach test) in het Zwin op 6 en 7 oktober 1994

Application of sediment transport formulae to sand-dike breach erosion

The Technical Advisory Committee on Water Defences in the Netherlands has decided to develop a mathematical model for breach erosion in dunes and dikes, with which it will be possible to predict the growth of the breach and the discharge rate through the breach in case of a dike-burst. An essential part of such a mathematical model is the...

Golfvoortplanting na dijkbreuk: Deelstudie voor een Pomp Accumulatie Centrale in het IJsselmeer

De stroming en golfvoortplanting in het IJsselmeer na breuk van de dijk om een spaarbekken zijn theoretisch en experimenteel onderzocht. Het gebruikte wiskundige model gaat uit van axiaalsymmetrische voortplanting van lange golven. Voor het verkrijgen van resultaten zijn numerieke berekeningen uitgevoerd. De experimenten zijn verricht in een...