Appraisal of Scale Effects in Centrifuge Modeling for the Prediction of Ultimate Settlement of Slurries
Publication: Geo-Congress 2022
ABSTRACT
The self-weight consolidation testing of slurry material in a centrifuge environment reduces the testing time significantly and simulates better field stress conditions. However, variation in the centrifuge acceleration with the depth of the model poses a challenge in interpreting the results. The settlement behavior of a prototype of fixed height was predicted from numerically simulated centrifuge consolidation test data using the scale factors corresponding to various effective-radii and model base values. The predicted settlement behavior was compared with the simulated prototype settlement. The ultimate settlement was under-predicted using the constant-N as the scale factor. The maximum error in ultimate settlement with base N was 3.74%, which was much less compared to the other cases where the model height to centrifuge radius ratio was kept below 0.25.
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Geo-Congress 2022
Pages: 608 - 617
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Published online: Mar 17, 2022
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