An undrained effective-stress method was adopted to examine the pore pressure response by spudcan penetration with and without lattice leg. Coupled Eulerian-Lagrangian analysis technique was conducted using ABAQUS/Explicit v6.11. For spudcan penetration with lattice leg, the computed excess pore pressure at spudcan base shows good agreement with centrifuge experimental results. The comparison result verifies and extends the feasibility of this effective-stress finite element method, in which lattice leg is taken into account. Larger excess pore pressure is found to be developed by the involvement of lattice leg. The soil strength is also shown to influence the pore pressure response.
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