Evaluation of the Relative Accuracies of Two- and Four-Parameter Models for Predicting Maximum and Minimum Void Ratios for Sand-Silt Mixtures
Carmine P Polito
Dans les comptes rendus d’articles de la conférence: GeoSaskatoon 2023: 76th Canadian Geotechnical ConferenceSession: Advanced Testing 2
ABSTRACT: The maximum and minimum index void ratios of sand-silt mixtures can be predicted using the filling coefficient, a, and embedment coefficient, b with an appropriate model. There are three implementations of these models: The four-parameter model, the emin-two-parameter model and the emax-two parameter model. The four-parameter model uses two values of the filling coefficient, a, and two values of the embedment coefficient, b. Conversely, the two-parameter models use one pairing of the filling coefficient, a, and the embedment coefficient, b. A study was performed to evaluate the relative accuracies of two-parameter models and four-parameter model in predicting the maximum and minimum index void ratios of sand-silt mixtures. It was found that the emax-two parameter model was the least accurate model. Both the emin-two-parameter model and the four-parameter model produced very accurate estimates. Additionally, recommendations are provided for choosing which model to use based on several possible scenarios.
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Polito, Carmine P (2023) Evaluation of the Relative Accuracies of Two- and Four-Parameter Models for Predicting Maximum and Minimum Void Ratios for Sand-Silt Mixtures in GEO2023. Ottawa, Ontario: Canadian Geotechnical Society.
@inproceedings{Polito_GEO2023_99,
author = {{Polito, Carmine P}}
title = {Evaluation of the Relative Accuracies of Two- and Four-Parameter Models for Predicting Maximum and Minimum Void Ratios for Sand-Silt Mixtures}
booktitle = {Proceedings of the 76th Canadian Geotechnical Conference}
year = {2023}
organization = {The Canadian Geotechnical Society},
address = {Ottawa, Canada} }
title = {Evaluation of the Relative Accuracies of Two- and Four-Parameter Models for Predicting Maximum and Minimum Void Ratios for Sand-Silt Mixtures}
booktitle = {Proceedings of the 76th Canadian Geotechnical Conference}
year = {2023}
organization = {The Canadian Geotechnical Society},
address = {Ottawa, Canada} }