Prediction method for grass erosion on levees by wave overtopping: Linking models to experiments

Large areas of the world are protected by flood defence systems. A common part of flood defence systems is a levee with grass cover, with the primary function to protect hinterland against floods. Waveovertopping might lead to erosion of the grass cover, followed by erosion of the inner slope and potentially levee breaching. The wave overtopping...

Stability assessment of the landside slope cover on clay flood embankments in the Netherlands

Large parts of the Netherlands are vulnerable to flooding. Due to the great impact that a flood would have for the Dutch society, The flood safety standards are very strict, which means that the required failure probability of flood defences is very low. To keep the flood risk within acceptable limits of the hinterland, flood embankments are...

Final Report Levee Challenge: Team Hans Brinker

In this assignment we simulate a two meters wide dike stretch which is subjected to overflow. Three failure mechanisms could occur due to overflow: full erosion of the soil of the dike, macro instability of the levee if too much soil is eroded away, leading to insufficient counterweight on the inside of the levee, and surface slip failure due to...

Dismantle Boundaries-Create Synergies: Rethinking Houstons Infrastructure

This report is not only the final result of the design made for the Infrastructure and Environment Design course (Q4 - Urbanism) but considerably more a representation of the entire learning process and the path towards the goal itself. The aim of this course was to investigate water related urban- and engineering designs in delta metropoles....

Modelling the phreatic surface in regional flood defences

The phreatic surface is an important factor of influence on the stability and therefore the safety of regional flood defences. For stability calculations usually a schematisation of the phreatic surface is used, based on the geometry of the flood defence and the water levels. The influence of precipitation and evapotranspiration is not...

Improving Flood Safety and Ferry Navigation in the Changing Environment of Holwerd

Relative sea level rise and climate change represent long-term threats for the ecosystems and flood defence system in the Wadden Sea. Moreover, the flood-dominant tidal basins in the area lead to sedimentation in the navigational channels used by the ferry services that connect the mainland to the Dutch Wadden islands. This report provides flood...