DEM Simulation of Frozen Granular Soils with High Ice Content
High volumetric ice content is one of the structural features of alpine permafrost. The mechanical properties of pure ice are very different from those of dry soil and as a consequence the mechanical properties of frozen soil are highly dependent on the ice content, as highlighted by triaxial experi...
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ftpolimilanoiris:oai:re.public.polimi.it:11311/1093612 2024-04-14T08:12:55+00:00 DEM Simulation of Frozen Granular Soils with High Ice Content WANG, GUODONG Calvetti F. Calvetti, Cotecchia, Galli, Jommi Wang, Guodong Calvetti, F. 2020 http://hdl.handle.net/11311/1093612 https://doi.org/10.1007/978-3-030-21359-6_50 eng eng Springer info:eu-repo/semantics/altIdentifier/isbn/978-3-030-21358-9 info:eu-repo/semantics/altIdentifier/isbn/978-3-030-21359-6 ispartofbook:Geotechnical Research for Land Protection and Development firstpage:472 lastpage:480 numberofpages:9 serie:LECTURE NOTES IN CIVIL ENGINEERING alleditors:Calvetti, Cotecchia, Galli, Jommi http://hdl.handle.net/11311/1093612 doi:10.1007/978-3-030-21359-6_50 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85068109864 www.springer.com/series/15087 info:eu-repo/semantics/closedAccess Discrete element method Frozen soil Ice content PFC3D Triaxial tests info:eu-repo/semantics/bookPart 2020 ftpolimilanoiris https://doi.org/10.1007/978-3-030-21359-6_50 2024-03-18T15:56:27Z High volumetric ice content is one of the structural features of alpine permafrost. The mechanical properties of pure ice are very different from those of dry soil and as a consequence the mechanical properties of frozen soil are highly dependent on the ice content, as highlighted by triaxial experiments available in the literature. On the basis of existing data from experiments under different stress paths (axis-symmetric compression and extension), this paper presents a frozen soil model by using the particle-based discrete element method (DEM). In the model two groups of elements are used for representing soil particles and ice, and two separate sets of micromechanical parameters are calibrated and assigned to each group. Elements from the two groups are then mixed in different proportions in order to simulate the effect of ice content. A series of triaxial compression simulations are then performed and analysed. Book Part Ice permafrost RE.PUBLIC@POLIMI - Research Publications at Politecnico di Milano 472 480 |
institution |
Open Polar |
collection |
RE.PUBLIC@POLIMI - Research Publications at Politecnico di Milano |
op_collection_id |
ftpolimilanoiris |
language |
English |
topic |
Discrete element method Frozen soil Ice content PFC3D Triaxial tests |
spellingShingle |
Discrete element method Frozen soil Ice content PFC3D Triaxial tests WANG, GUODONG Calvetti F. DEM Simulation of Frozen Granular Soils with High Ice Content |
topic_facet |
Discrete element method Frozen soil Ice content PFC3D Triaxial tests |
description |
High volumetric ice content is one of the structural features of alpine permafrost. The mechanical properties of pure ice are very different from those of dry soil and as a consequence the mechanical properties of frozen soil are highly dependent on the ice content, as highlighted by triaxial experiments available in the literature. On the basis of existing data from experiments under different stress paths (axis-symmetric compression and extension), this paper presents a frozen soil model by using the particle-based discrete element method (DEM). In the model two groups of elements are used for representing soil particles and ice, and two separate sets of micromechanical parameters are calibrated and assigned to each group. Elements from the two groups are then mixed in different proportions in order to simulate the effect of ice content. A series of triaxial compression simulations are then performed and analysed. |
author2 |
Calvetti, Cotecchia, Galli, Jommi Wang, Guodong Calvetti, F. |
format |
Book Part |
author |
WANG, GUODONG Calvetti F. |
author_facet |
WANG, GUODONG Calvetti F. |
author_sort |
WANG, GUODONG |
title |
DEM Simulation of Frozen Granular Soils with High Ice Content |
title_short |
DEM Simulation of Frozen Granular Soils with High Ice Content |
title_full |
DEM Simulation of Frozen Granular Soils with High Ice Content |
title_fullStr |
DEM Simulation of Frozen Granular Soils with High Ice Content |
title_full_unstemmed |
DEM Simulation of Frozen Granular Soils with High Ice Content |
title_sort |
dem simulation of frozen granular soils with high ice content |
publisher |
Springer |
publishDate |
2020 |
url |
http://hdl.handle.net/11311/1093612 https://doi.org/10.1007/978-3-030-21359-6_50 |
genre |
Ice permafrost |
genre_facet |
Ice permafrost |
op_relation |
info:eu-repo/semantics/altIdentifier/isbn/978-3-030-21358-9 info:eu-repo/semantics/altIdentifier/isbn/978-3-030-21359-6 ispartofbook:Geotechnical Research for Land Protection and Development firstpage:472 lastpage:480 numberofpages:9 serie:LECTURE NOTES IN CIVIL ENGINEERING alleditors:Calvetti, Cotecchia, Galli, Jommi http://hdl.handle.net/11311/1093612 doi:10.1007/978-3-030-21359-6_50 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85068109864 www.springer.com/series/15087 |
op_rights |
info:eu-repo/semantics/closedAccess |
op_doi |
https://doi.org/10.1007/978-3-030-21359-6_50 |
container_start_page |
472 |
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480 |
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1796310772991655936 |