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Hierarchical Multiscale Modeling of Thaw-Induced Landslides in Permafrost

Shiwei Zhao1,*, Hao Chen2, Jidong Zhao1

1 The Hong Kong University of Science and Technology, Hong Kong, 999077, China
2 South China University of Technology, GuangZhou, 510641, China

* Corresponding Author: Shiwei Zhao. Email: email

The International Conference on Computational & Experimental Engineering and Sciences 2023, 25(2), 1-1. https://doi.org/10.32604/icces.2023.09965

Abstract

With global warming, thaw-induced landslides occur more frequently in permafrost, which not only threaten the safety of infrastructures as general geohazards but also worsen global warming due to carbon release. This work presents a novel computational framework to model thaw-induced landslides from a multiscale perspective. The proposed approach can capture the thermal-mechanical (TM) response of frozen soils at the particulate scale by using discrete element method (DEM). The micromechanics-based TM model is superior to capturing the sudden crash of soil skeletons caused by thaw-induced cementation loss between soil grains. The DEM-simulated TM response is then homogenized and directly fed into an upper continuum-scale initial and boundary value problem, i.e., thaw-induced landslide. The mesh-free material point method (MPM) is employed to solve the TM response at the upper continuum scale. The coupled multiscale framework, coined as DEMPM, is highly parallelized by using a thread-block-wise parallelization scheme on graphics processing units (GPUs), thereby capable of handling engineering-scale simulations of landslides. Numerical simulations are showcased to demonstrate the efficacy of the proposed framework.

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Cite This Article

APA Style
Zhao, S., Chen, H., Zhao, J. (2023). Hierarchical multiscale modeling of thaw-induced landslides in permafrost. The International Conference on Computational & Experimental Engineering and Sciences, 25(2), 1-1. https://doi.org/10.32604/icces.2023.09965
Vancouver Style
Zhao S, Chen H, Zhao J. Hierarchical multiscale modeling of thaw-induced landslides in permafrost. Int Conf Comput Exp Eng Sciences . 2023;25(2):1-1 https://doi.org/10.32604/icces.2023.09965
IEEE Style
S. Zhao, H. Chen, and J. Zhao "Hierarchical Multiscale Modeling of Thaw-Induced Landslides in Permafrost," Int. Conf. Comput. Exp. Eng. Sciences , vol. 25, no. 2, pp. 1-1. 2023. https://doi.org/10.32604/icces.2023.09965



cc Copyright © 2023 The Author(s). Published by Tech Science Press.
This work is licensed under a Creative Commons Attribution 4.0 International License , which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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