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1 2005

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Simulation of piezocone penetration in saturated porous medium using the FE remeshing technique

Markauskas D., Kacianauskas R., Katzenbach R.

Foundations of Civil and Environmental Engineering

2005

No. 6

103-116

The simulation of piezocone penetration in saturated soil modelled as porous medium has been presented herein. The non-linear transient coupled soil-pore fluid model and the finite element method (FEM) have been applied. To handle very large distortion of medium surrounding the cone tip, a finite clement remeshing technique for deformed domain involving combined transfer of the state variables has been developed. The moving least square method was utilized for the transfer of Gauss points variables while the simple interpolation method was used for the transfer of nodal points variables. This technique was implemented into the post-processor type software compatible with a standard FEM code. The proposed remeshing technique enables the simulation of the penetration process with penetration depth of several diameters until steady state penetration is reached. The validity of the remeshing is justified by comparing the simulation results in porous and homogeneous media.