Breach Initiation and Growth: Physical Processes

During the IMPACT Project a number of large scale field tests were undertaken in Norway to collect data, including extensive video footage, recording the physical processes that occured during the initiation and growth of breach through the test embankments. The video footage has been carefully analysed and key processes identified, to support...

Sea dikes breaching initiated by breaking wave impacts - Preliminary computational model

Sea dikes are of crucial importance in the defence systems of low-lying coastal areas in Germany as well as in other countries such as The Netherlands and Denmark. Breaches of sea dikes due to storm surges are regarded as the main cause of flood disasters, so that a reliable prediction of both breach initiation, breach formation and breach...

Modelling Breach Initiation and Growth

This report provides an overview of the technical work undertaken by the partners under FLOODsite Task 6. The research in Task 6 addresses breach initiation and growth. Research was undertaken to (i) investigate and develop preliminary models for predicting wave induced breach initiation (ii) investigate soil processes, review and refine the HR...

Review of the IMPACT Project breach field test data

The IMPACT Project (www.impact-project.net) provided valuable data on breach formation processes. Five large scale field tests were performed in Norway, and a further 22 laboratory tests were performed in the UK. A review of this data has been undertaken to support breach model testing and development under Task 6.

Erosion of embankments

Erosion of surface vegetation of fluvial and coastal embankments is the first step in the breach initiation process for an embankment. Detailed knowledge of the driving forces, factors and erosion mechanisms is required to understand and manage the failure risk. Past and present research on the erosion of surface vegetation has been reviewed and...

Sea dike breach initiation and development

Description of the performance of the large-scale experiments in the GWK in Hannover in 2008

Qualitative and quantitative reliability analysis of holes in embankments

The aim of this research was to investigate the influence of holes in the grass turf on the failure mechanisms and reliability analysis of dikes. The shape of the holes is either caused by a foreign object, a superficial void in the grass turf or a larger hole caused by for example animal burrowing or vandalism.

Sea dikes breaching initiated by breaking wave impacts - State of the art

Sea dikes are of crucial importance in the defence systems of low-lying coastal areas in countries such as Germany, The Netherlands or Denmark, etc. Breaches of sea dikes induced by storm surges are regarded as the main cause of coastal flood disasters. Therefore a reliable prediction of both initial conditions for the breach occurrence and the...

Sea dikes breaching initiated by breaking wave impact - Detail computational model

Sea dikes are of crucial importance in the defence systems of low-lying coastal areas in Germany as well as in other countries such as The Netherlands and Denmark. Breaches of sea dikes due to storm surges are regarded as the main cause of flood disasters, so that a reliable prediction of both breach initiation, breach formation and breach...