Using Particle Size Distribution to Determine Thaw Strain in Coarse-grained Sediments
Zakieh Mohammadi, Jocelyn L Hayley
In the proceedings of: GeoSaskatoon 2023: 76th Canadian Geotechnical ConferenceSession: Cold Regions
ABSTRACT: This study presents a new approach for estimating the thaw settlement of coarse-grained permafrost sediments by means of estimating maximum and minimum void ratios (index void ratios). This approach uses published predictive tools with input parameters such as mean grain size, coefficient of uniformity, and fine content to obtain index void ratios. These values are then used to draw conclusions about the thawed void ratios of coarse-grained permafrost samples and their thaw strain. A dataset containing results of 65 thaw settlement tests on coarse-grained permafrost samples along with corresponding properties, collected by the Centre d'Études Nordiques, was used to validate the predicted thaw strains against measured values. The results of this validation exercise showed the estimated thaw strains are in good agreement with the measured values, demonstrating the accuracy and reliability of this approach. Tailored specifically for granular materials and relying only on particle size distributions (commonly reported in site investigation reports), this approach is a reliable and cost-effective method for predicting thaw settlement of coarse-grained permafrost sediments.
Submit a Data Update Form for this paper
Please include this code when submitting a data update via other methods: GEO2023_106
Access this article:
Canadian Geotechnical Society members can access to this article, along with all other Canadian Geotechnical Conference proceedings, in the Member Area. Conference proceedings are also available in many libraries.
Cite this article:
Mohammadi, Zakieh, Hayley, Jocelyn L (2023) Using Particle Size Distribution to Determine Thaw Strain in Coarse-grained Sediments in GEO2023. Ottawa, Ontario: Canadian Geotechnical Society.
@inproceedings{Mohammadi_GEO2023_106,
author = {{Mohammadi, Zakieh}, {Hayley, Jocelyn L}}
title = {Using Particle Size Distribution to Determine Thaw Strain in Coarse-grained Sediments}
booktitle = {Proceedings of the 76th Canadian Geotechnical Conference}
year = {2023}
organization = {The Canadian Geotechnical Society},
address = {Ottawa, Canada} }
title = {Using Particle Size Distribution to Determine Thaw Strain in Coarse-grained Sediments}
booktitle = {Proceedings of the 76th Canadian Geotechnical Conference}
year = {2023}
organization = {The Canadian Geotechnical Society},
address = {Ottawa, Canada} }