Three-dimensional stress–strain and strength behavior of silt–clay transition soils
Issued Date
2023-10-01
Resource Type
ISSN
00083674
eISSN
12086010
Scopus ID
2-s2.0-85175055163
Journal Title
Canadian Geotechnical Journal
Volume
60
Issue
10
Start Page
1571
End Page
1585
Rights Holder(s)
SCOPUS
Bibliographic Citation
Canadian Geotechnical Journal Vol.60 No.10 (2023) , 1571-1585
Suggested Citation
Anantanasakul P., Intharachart P., Kaliakin V.N. Three-dimensional stress–strain and strength behavior of silt–clay transition soils. Canadian Geotechnical Journal Vol.60 No.10 (2023) , 1571-1585. 1585. doi:10.1139/cgj-2022-0246 Retrieved from: https://repository.li.mahidol.ac.th/handle/20.500.14594/90910
Title
Three-dimensional stress–strain and strength behavior of silt–clay transition soils
Author(s)
Author's Affiliation
Other Contributor(s)
Abstract
The effect of silt content on the mechanical behavior of silt–clay transition soils under 3D stress conditions is presented. Undrained true triaxial tests with constant b values were performed on normally consolidated specimens of silt–clay transition soils created from the same base clay and nonplastic silt, however, with systematically varying gradations. With increasing amount of nonplastic silt, the cohesive soils exhibit less contractive tendencies, stiffer stress–strain response, and larger shear strength. The magnitude of intermediate principal stress, as indicated by the b value, also strongly influences the stress–strain relations, pore pressure behavior, and both total and effective failure surfaces. Although the transition soils exhibit overall clay-like behavior, more pronounced frictional characteristics, as indicated by the shapes of the failure and plastic potential surfaces, were exhibited with increasing silt content.