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Updated: Apr 1, 2026

The Diffusion of Passive Tracers in Laminar Shear Flow
Published on: May 1, 2018
Analytical solution for vacuum preloading considering the nonlinear distribution of horizontal permeability within
Jie Peng1, Xiang He1, Hanming Ye1
1Research Institute of Geotechnical Engineering, Hohai University, Nanjing 210098, PR China.
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.
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