LEAP GWU 2017: Investigating different methods for verifying the relative density of a centrifuge model

Investigation of key parameters and issues in simulating centrifuge model tests of a sheet-pile wall retaining a liquefiable soil deposit

“…These factors can lead to discrepancies between the as-built experimental conditions and the simulations, which makes a fair comparison between the two difficult. For example, physical challenges associated with placement of the sand within the centrifuge container might lead to variations in the soil's relative density (D R ) or inaccuracies in measurements (e.g., Beber et al [15]). Differences between the D R values estimated based on mass and cone penetration test (CPT) measurements are also expected [15].…”

“…For example, physical challenges associated with placement of the sand within the centrifuge container might lead to variations in the soil's relative density (D R ) or inaccuracies in measurements (e.g., Beber et al [15]). Differences between the D R values estimated based on mass and cone penetration test (CPT) measurements are also expected [15]. Moreover, past validation exercises have shown that a well-constrained and measured shear modulus, as opposed to one obtained from empirical and semi-empirical observations, can lead to a significant improvement between experimental observations and numerical simulations [12,16].…”