Application of UBCSAND to the LEAP centrifuge experiments

UBCSAND is an effective-stress constitutive model for estimating shear-induced deformations resulting from liquefaction. It is a practice-oriented tool that balances simplicity of formulation and use with the ability to address key aspects of the liquefaction problem. This paper discusses the challenges of applying a FLAC-UBCSAND modeling approach to Class-A, B, and C predictions of the LEAP centrifuge tests. Attention is given to typical model calibration procedures and difficulties in using these procedures for the LEAP evaluations. A comparison of the analysis predictions to the centrifuge measurements is provided.