@article{(International Science Index):http://iastem.com/publications/10007839,
  author    = {K. Vandenboer and  L. Dolphen and  A. Bezuijen},
  email	    = {kristine.vandenboer@ugent.be}  ,
  title     = {Backward Erosion Piping through Vertically Layered Sands},
  country   = {Belgium},
  institution={Ghent University},
  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.},
    journal   = {International Journal of Environmental, Chemical, Ecological, Geological and Geophysical Engineering},  volume    = {11},
  number    = {9},
  year      = {2017},
  pages     = {24 - 27},
  ee        = {http://iastem.com/publications/10007839},
  url   	= {http://iastem.com/Publications?p=129},
  bibsource = {http://iastem.com/Publications},
  issn  	= {1307-6892},
  publisher = {International Science Index},
  index 	= {International Science Index 129, Geotechnical and Geological Engineering, 2017},