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

R. Beber, S. S.C. Madabhushi, A. Dobrisan, S. K. Haigh, S. P.G. Madabhushi

Research output: Chapter in Book/Report/Conference proceedingConference contribution book

Abstract

The second phase of the LEAP project investigating the liquefaction of a 5◦ saturated sand slope has commenced, focused on the effects of relative density and input motion. Thus, reliably estimating the density and quantifying the associated uncertainty is cardinal. The sensitivity of the calculated relative density to small measurement errors on the sand mass and volume during model preparation is highlighted. Settlement during swing-up, quantified using particle image velocimetry, implies a small densification of the soil mass. Recognition of the stress dependent soil stiffness is required to model the measured settlement profile. Finally, in-flight miniature CPT tests are discussed for further analysis of density. Empirical correlations linking cone resistance to relative density appear to agree with measurements from the pouring stage.However, the dependence of cone resistance on other factors like the lateral stress state requires further investigation. Overall, the CPT provides instructive insights into key model properties.

Original languageEnglish
Title of host publicationPhysical Modelling in Geotechnics
EditorsAndrew McNamara, Sam Divall, Richard Goodey, Neil Taylor, Sarah Stallebrass, Jignasha Panchal
Pages125-130
Number of pages6
Edition1
DOIs
Publication statusPublished - 1 Jan 2018
Event9th International Conference on Physical Modelling in Geotechnics, ICPMG 2018 - London, United Kingdom
Duration: 17 Jul 201820 Jul 2018

Publication series

NamePhysical Modelling in Geotechnics
Volume1

Conference

Conference9th International Conference on Physical Modelling in Geotechnics, ICPMG 2018
CountryUnited Kingdom
CityLondon
Period17/07/1820/07/18

Keywords

  • centrifuge model
  • LEAP project
  • relative density

Fingerprint

Dive into the research topics of 'LEAP GWU 2017: investigating different methods for verifying the relative density of a centrifuge model'. Together they form a unique fingerprint.

Cite this