This paper investigates embankment reliability based on the ultimate limit state (ULS). The ULS is generally not clearly defined and, especially for flood defences, the ULS is currently under discussion. According to Dutch law , flooding which leads to either casualties or substantial financial damage is considered as the ultimate limit state of a flood defence structure. However, initial slope instability is regarded as flood defence failure according to guidelines for the assessment of macro-instability of dykes . Allowing initial failure, but preventing a dyke breach, is not prohibited by the current Dutch regulations and can lead to more efficient design. Analysis of both large deformations as well as the influence of spatial variability of soil properties is important to assess the reliability of a dyke against breaching. This paper uses a new technique called the random material point method (RMPM) , which combines MPM  for modelling large deformations, with random fields  for modelling soil variability, in a Monte Carlo simulation.
|Publication status||Published - 2018|
|Event||ComGeo IV: 4th Internation Symposium on Computational Geomechanics - Assisi, Italy|
Duration: 2 May 2018 → 4 May 2018
Conference number: 4
|Conference||ComGeo IV: 4th Internation Symposium on Computational Geomechanics|
|Abbreviated title||ComGeo IV|
|Period||2/05/18 → 4/05/18|