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Analytical solution for vacuum preloading considering the nonlinear distribution of horizontal permeability within the smear zone

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  • Jie Peng
  • Xiang He
  • Hanming Ye

Abstract

The vacuum preloading is an effective method which is widely used in ground treatment. In consolidation analysis, the soil around prefabricated vertical drain (PVD) is traditionally divided into smear zone and undisturbed zone, both with constant permeability. In reality, the permeability of soil changes continuously within the smear zone. In this study, the horizontal permeability coefficient of soil within the smear zone is described by an exponential function of radial distance. A solution for vacuum preloading consolidation considers the nonlinear distribution of horizontal permeability within the smear zone is presented and compared with previous analytical results as well as a numerical solution, the results show that the presented solution correlates well with the numerical solution, and is more precise than previous analytical solution.

Suggested Citation

  • Jie Peng & Xiang He & Hanming Ye, 2015. "Analytical solution for vacuum preloading considering the nonlinear distribution of horizontal permeability within the smear zone," PLOS ONE, Public Library of Science, vol. 10(10), pages 1-15, October.
    • Handle: RePEc:plo:pone00:0139660
    DOI: 10.1371/journal.pone.0139660
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