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Estimating the rate of erosion of a silty sand treated with lignosulfonate

Journal Article


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Abstract


  • This paper describes a theoretical model to capture the rate of erosion of a silty sand based on the principle of conservation of energy. Erosion is considered to begin when the interparticle bonds between grains are broken by hydrodynamic stresses exerted on the soil particles. These detached particles are then suspended and transported by the flow of eroding fluid. It is further assumed that once the particles are fully suspended and have reached the flow velocity, resettlement does not take place. Stabilization of soil particles because of lignosulfonate (LS) treatment is represented by the increased strain energy required to break the interparticle bonds. The equation proposed in this study is based on the shear stress-strain characteristics, mean flow velocity, mean particle diameter, and the packing arrangement of particles. The result of the proposed study is presented in the form of erosion rate versus the hydraulic shear stress. The model is validated with a series of laboratory erosion tests using the Process Simulation Apparatus for Internal Crack Erosion (PSAICE) for different percentages of LS. The model results are in good agreement with the experimental observations. DOI: 10.1061/(ASCE)GT.1943-5606.0000766. (C) 2013 American Society of Civil Engineers.

UOW Authors


  •   Indraratna, Buddhima N. (external author)
  •   Athukorala, Rasika Manori. (external author)
  •   Vinod, J S. (external author)

Publication Date


  • 2013

Citation


  • Indraratna, B., Athukorala, R. & Vinod, J. (2013). Estimating the rate of erosion of a silty sand treated with lignosulfonate. Journal of Geotechnical and Geoenvironmental Engineering, 139 (5), 701-714.

Scopus Eid


  • 2-s2.0-84879720822

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=1719&context=eispapers

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers/713

Has Global Citation Frequency


Number Of Pages


  • 13

Start Page


  • 701

End Page


  • 714

Volume


  • 139

Issue


  • 5

Place Of Publication


  • United States

Abstract


  • This paper describes a theoretical model to capture the rate of erosion of a silty sand based on the principle of conservation of energy. Erosion is considered to begin when the interparticle bonds between grains are broken by hydrodynamic stresses exerted on the soil particles. These detached particles are then suspended and transported by the flow of eroding fluid. It is further assumed that once the particles are fully suspended and have reached the flow velocity, resettlement does not take place. Stabilization of soil particles because of lignosulfonate (LS) treatment is represented by the increased strain energy required to break the interparticle bonds. The equation proposed in this study is based on the shear stress-strain characteristics, mean flow velocity, mean particle diameter, and the packing arrangement of particles. The result of the proposed study is presented in the form of erosion rate versus the hydraulic shear stress. The model is validated with a series of laboratory erosion tests using the Process Simulation Apparatus for Internal Crack Erosion (PSAICE) for different percentages of LS. The model results are in good agreement with the experimental observations. DOI: 10.1061/(ASCE)GT.1943-5606.0000766. (C) 2013 American Society of Civil Engineers.

UOW Authors


  •   Indraratna, Buddhima N. (external author)
  •   Athukorala, Rasika Manori. (external author)
  •   Vinod, J S. (external author)

Publication Date


  • 2013

Citation


  • Indraratna, B., Athukorala, R. & Vinod, J. (2013). Estimating the rate of erosion of a silty sand treated with lignosulfonate. Journal of Geotechnical and Geoenvironmental Engineering, 139 (5), 701-714.

Scopus Eid


  • 2-s2.0-84879720822

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=1719&context=eispapers

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers/713

Has Global Citation Frequency


Number Of Pages


  • 13

Start Page


  • 701

End Page


  • 714

Volume


  • 139

Issue


  • 5

Place Of Publication


  • United States