Enhanced cone penetration test interpretation with the Particle Finite Element Method (PFEM)

Abstract

The paper presents an enhanced interpretation of the cone penetration test based on numerical analysis performed using the Particle Finite Element Method (PFEM). This method allows the incorporation of strong non-linearities, notably those associated with the large displacements and strains arising from the process of the penetration of the cone. Realistic constitutive laws can also been used. Undrained CPT tests are analysed using a single phase formulation whereas CPTu tests are examined using a two-phase formulation that allows the computation of pore pressures and the study of partially drained tests. It can be concluded that PFEM provides an efficient and robust method to analyse insertion problems that are ubiquitous in geotechnical engineering.