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On three-dimensional SPH modelling of large-scale landslides

Authors

Peng,  Chong
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Li,  Shuai
4.7 Earth Surface Process Modelling, 4.0 Geosystems, Departments, GFZ Publication Database, Deutsches GeoForschungsZentrum;

Wu,  Wei
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An,  Huicong
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Chen ,  Xiaoqing
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Ouyang ,  Chaojun
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/persons/resource/htang

Tang,  Hui
4.7 Earth Surface Process Modelling, 4.0 Geosystems, Departments, GFZ Publication Database, Deutsches GeoForschungsZentrum;

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Citation

Peng, C., Li, S., Wu, W., An, H., Chen, X., Ouyang, C., Tang, H. (2022): On three-dimensional SPH modelling of large-scale landslides. - Canadian Geotechnical Journal, 59, 1, 24-39.
https://doi.org/10.1139/cgj-2020-0774


Cite as: https://gfzpublic.gfz-potsdam.de/pubman/item/item_5009248
Abstract
Lagrangian particle-based smoothed particle hydrodynamics (SPH) is increasingly widely used in landslide modelling. This paper investigates four important issues not addressed by previous studies on SPH modelling of large-scale landslides, i.e., convergence property, influence of constitutive parameters, scale effect and friction reduction, and influence of different treatments of the viscous effect. The GPU-acceleration technique is employed to achieve high-resolution three-dimensional (3D) modelling. The Baige landslide is investigated by comparing numerical results with field data, and detailed analyses on the four issues are provided. Suggestions on particle resolution, constitutive parameter, and formulations of viscous discretization are also presented for future SPH modelling of large-scale landslides.