Excellence in Research and Innovation for Humanity

A Bezuijen

Publications

1

Publications

1
10007839
Backward Erosion Piping through Vertically Layered Sands
Abstract:
Backward erosion piping is an important failure mechanism for water-retaining structures, a phenomenon that results in the formation of shallow pipes at the interface of a sandy or silty foundation and a cohesive cover layer. This paper studies the effect of two soil types on backward erosion piping; both in case of a homogeneous sand layer, and in a vertically layered sand sample, where the pipe is forced to subsequently grow through the different layers. Two configurations with vertical sand layers are tested; they both result in wider pipes and higher critical gradients, thereby making this an interesting topic in research on measures to prevent backward erosion piping failures.
Keywords:
Backward erosion piping, embankments, physical modelling, sand.