Effects of internal erosion on the cyclic and post-cyclic mechanical behaviours of reconstituted volcanic ash

Chitravel, Sanjei; Otsubo, Masahisa; Kuwano, Reiko

doi:10.1016/j.sandf.2022.101111

Cited by 8 publications

(3 citation statements)

References 68 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…One way to study the influence of fine particle content on suffusion would be to modify the initial fine particle content prior to erosion or to track the change in soil fabric and mechanical behavior with the loss of fine particles during erosion. These studies on mechanical performance with experimental work were less indicative of the understanding of the role of fine particles in soil mechanics [1]. The theory claimed that the fine particle content weakened the resistance to liquefaction when the relative density remained unchanged.…”

Section: Introductionmentioning

confidence: 99%

“…Chen et al [12] claimed that increasing the initial relative density (from 20% to 80%) would result in a higher drained failure strength based on a triaxial erosion apparatus with gap-graded soils. Chitravel et al [1] suggested that the cyclic strength of samples after erosion was improved independent of the variation in the initial relative density (45% to 84%) with experimental work on broadly graded volcanic ash. An investigation concerning mechanical behavior asserted that relative density did not have an obvious impact on the relationship between the post-cyclic excess pore water pressure and the undrained shear stress [13].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Impact of Gap-Graded Soil Geometrical Characteristics on Soil Response to Suffusion

Dong,

Disfani

2024

Geotechnics

View full text Add to dashboard Cite

The phenomenon of fine particle migration through the voids of the granule skeleton under the seepage force is called suffusion. Relative density, original fine particle content, and gap ratio are thought to play vital roles in the suffusion process. This paper investigates the effect of geometrical characteristics (i.e., original fine particle content, gap ratio, and relative density) on soil structure and mechanical performance (i.e., small strain shear modulus) using the bender element method technique. The small strain shear modulus (G0) is used as a mechanical parameter to evaluate the shear stress transmission of the soil structure along with the erosion process. The comparison between erosion percentage and vertical strain change suggests the alteration in soil fabric after soil erosion. The G0 monitoring results show that packings with a higher original fine particle content have a lower G0 value, whereas the gap ratio and relative density present a positive relationship with G0.

show abstract

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Impact of Gap-Graded Soil Geometrical Characteristics on Soil Response to Suffusion

Dong,

Disfani

2024

Geotechnics

View full text Add to dashboard Cite

show abstract

“…Jana [34] found that for the intact specimens, the over-consolidation ratio did not significantly affect the magnitudes of post-cyclic volumetric strain and the maximum excess pore pressure generated during cyclic shear had a significant effect on post-cyclic behavior. Chitravel [35] pointed out that the post-cyclic normalized undrained strength ratios of loose soil were between three and five, which reveals that cyclic loading can rearrange the internal fabric.…”

Section: Introductionmentioning

confidence: 99%

Cyclic and Post-Cyclic Behaviors of Stabilized Sand-Containing Soft Soil in Coastal Areas

Zhao

et al. 2022

Sustainability

View full text Add to dashboard Cite

Land resources are being depleted due to global climate change, and as a result, infrastructures such as expressways and high-speed railways have no option but to be built in soft soil regions. Hence, the cyclic and post-cyclic behaviors of soft soil are vitally important. However, little attention has been devoted to this issue. In the current study, a series of cyclic triaxial tests and standard monotonic loading tests were carried out in order to investigate the cyclic and post-cyclic behavior of stabilized sand-containing soft soil. In addition, the stiffness evolution index model was proposed to describe the characteristics of stiffness evolution. The results show that for a given number of loading cycles, stiffness almost linearly decreases with the increase in sand content. The higher the confining pressure is, the greater the stiffness is. The cement content has the greatest impact on the stiffness evolution index. The stiffness evolution index model can provide a good description of experimental data. The initial value of post-cyclic axial strain is non-zero due to the accumulative strain caused by previous cyclic loading. Post-cyclic stress increases rapidly within a small range of strain and can reach peak stress with great speed. The post-cyclic initial tangent modulus increases from 1602 kPa to 4803 kPa as the cement content increases from 6% to 12%.

show abstract

Experimental study on suffusion and contact erosion in double-layered alluvial foundation with a cut-off wall

Zhang,

Benamar,

Oueidat

et al. 2023

Acta Geotech.

View full text Add to dashboard Cite

Effects of internal erosion on the cyclic and post-cyclic mechanical behaviours of reconstituted volcanic ash

Cited by 8 publications

References 68 publications

Impact of Gap-Graded Soil Geometrical Characteristics on Soil Response to Suffusion

Impact of Gap-Graded Soil Geometrical Characteristics on Soil Response to Suffusion

Cyclic and Post-Cyclic Behaviors of Stabilized Sand-Containing Soft Soil in Coastal Areas

Experimental study on suffusion and contact erosion in double-layered alluvial foundation with a cut-off wall

Contact Info

Product

Resources

About