Unified equivalent intergranular void ratio for biotreated binary soils in characterising liquefaction resistance

Géotechnique, Journal Year: 2025, Volume and Issue: unknown, P. 1 - 17

Published: April 14, 2025

Both calcareous silt and calcium carbonate (CaCO 3 ) precipitation crystals generated by microbially induced (MICP) are fine-grained but exhibit distinct properties. The combined effect of these two components on the liquefaction resistance biotreated binary soils is rarely reported. In this study, systematic undrained cyclic triaxial tests bender element were conducted reconstituted sand specimens, varying in density parameters, four levels fines content three biotreatment levels. results reveal that packing density, significantly affect behaviour, shear wave velocity soils. addition, low-boundary curves established to improve accuracy assessments at sites with high velocity. Furthermore, relative contributions incorporated using concept unified equivalent intergranular void ratio (EIVR). utility approach characterising was validated through data from both study previous research. new EIVR can be used estimate complex cemented soils, which further enhances theoretical framework for dynamic non-cemented or sandy

Language: Английский

Tensile Strength and Fracture of Interparticle MICP Bonds

International Journal of Geomechanics, Journal Year: 2024, Volume and Issue: 24(10)

Published: Aug. 9, 2024

Language: Английский

Avalanches and failures in bio-stimulated soils

Acta Geotechnica, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 12, 2024

Language: Английский