Proceedings of the Rocscience International Conference (RIC 2023)

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Multi-stage Thermal Creep Characteristics of Frozen Tailings

Authors
Dana Amini1, 3, *, Pooneh Maghoul1, 2, Amade Pouya3
1University of Manitoba, Winnipeg, MB, Canada
2Polytechnique Montréal, Montréal, QC, Canada
3Navier Laboratory, École des Ponts ParisTech, Paris, France
*Corresponding author. Email: aminid@myumanitoba.ca
Corresponding Author
Dana Amini
Available Online 8 November 2023.
DOI
10.2991/978-94-6463-258-3_32How to use a DOI?
Keywords
Thermal Creep Characteristics; Tailings viscosity; Frozen Geomaterials; Constitutive Model
Abstract

The deformation of tailings dams due to creep has been identified as a significant threat to their stability and overall life-cycle performance. In northern regions, tailings dams constructed mostly on traditionally frozen foundations, are subject to hazards resulting from permafrost degradation due to climate non-stationarity. Due to the rapid rate of global warming in these regions, such time-dependent irrecoverable deformations can be significantly accelerated. Such failures were remarkably monitored in upstream-raised tailings storage facilities where tailings material are subject to incremental mechanical loading. Hence, deep understanding of tailings behavior under constant and rate-dependent thermal and mechanical loads is urgently needed. A parametric study is performed in the present work to capture the first-order multi-stage thermal creep characteristics of frozen geomaterials (mine tailings and foundation) under uniaxial loading. For this purpose, a Critical State Soil Mechanics (CSSM)-based Thermo-Elasto-Viscoplastic (TEVP) constitutive model is developed and employed to investigate such time- and temperature-dependent behaviors.

Copyright
© 2023 The Author(s)
Open Access
Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

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Volume Title
Proceedings of the Rocscience International Conference (RIC 2023)
Series
Atlantis Highlights in Engineering
Publication Date
8 November 2023
ISBN
10.2991/978-94-6463-258-3_32
ISSN
2589-4943
DOI
10.2991/978-94-6463-258-3_32How to use a DOI?
Copyright
© 2023 The Author(s)
Open Access
Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

Cite this article

risenwbib
TY  - CONF
AU  - Dana Amini
AU  - Pooneh Maghoul
AU  - Amade Pouya
PY  - 2023
DA  - 2023/11/08
TI  - Multi-stage Thermal Creep Characteristics of Frozen Tailings
BT  - Proceedings of the Rocscience International Conference  (RIC 2023)
PB  - Atlantis Press
SP  - 309
EP  - 316
SN  - 2589-4943
UR  - https://doi.org/10.2991/978-94-6463-258-3_32
DO  - 10.2991/978-94-6463-258-3_32
ID  - Amini2023
ER  -