A SMALL-STRAIN STIFFNESS MODEL FOR BIO-CEMENTED SANDS

[en] This study introduces a small-strain stiffness model for bio-cemented sands, building upon the existing small-strain stiffness model for sands proposed by Wichtmann and Triantafyllidis. The small-strain stiffness of numerical specimens, including sand specimens with different void ratios and bio-cemented specimens with different microscopic features, is evaluated using the discrete element method (DEM). The acquired DEM results are utilised to develop the small-strain stiffness model for bio-cemented sands. The proposed model is able to describe the small-strain stiffness of DEM bio-cemented sands. In particular, different contributions of carbonates in different distribution patterns to G0 enhancement can also be described by the proposed model.

Disciplines :

Civil engineering

Author, co-author :

Zhang, Aoxi ; Université de Liège - ULiège > Département ArGEnCo > Géotechnique ; Departement of Geoscience and Engineering, Delft University of Technology, Netherlands

Dieudonné, A.C.; Departement of Geoscience and Engineering, Delft University of Technology, Netherlands

Language :

English

Title :

A SMALL-STRAIN STIFFNESS MODEL FOR BIO-CEMENTED SANDS

Publication date :

2025

Event name :

5th International Symposium on Geomechanics from Micro to Macro, IS-Grenoble 2024

Event place :

Grenoble, France

Event date :

23-09-2024 => 27-09-2024

Audience :

International

Journal title :

IOP Conference Series: Earth and Environmental Science

ISSN :

1755-1307

eISSN :

1755-1315

Publisher :

Institute of Physics

Volume :

1480

Issue :

Pages :

012112

Peer review/Selection committee :

Peer Reviewed verified by ORBi

Additional URL :

https://iopscience.iop.org/article/10.1088/1755-1315/1480/1/012112

Available on ORBi :

since 26 June 2026

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Bibliography

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