Evaluation of static and dynamic properties of sand–fines mixtures through the state and equivalent state parameters

Hsiao, Darn-Horng; Phan, Vu To-Anh

doi:10.1016/j.soildyn.2016.02.006

Cited by 23 publications

(9 citation statements)

References 38 publications

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“…Moreover, it is shown that at a given density, CRR 15 decreases with increasing p 0 and that the effect of p 0 on CRR 15 diminishes with increasing f c . The existence of f c,th , has also been observed in previous studies on the effect of f c on the behaviour of sand with fines [38][39][40][41][42][43][44]. The f c,th is an important parameter determining the transition from the sand-dominated to the silt-dominated behaviour of mixtures and is related to their particle packing, mean diameter ratio, and separation distance as well as gradation, mineralogy, and particle shape characteristics [45].…”

Section: Liquefaction Resistancesupporting

confidence: 56%

Laboratory-Based Correlation between Liquefaction Resistance and Shear Wave Velocity of Sand with Fines

Papadopoulou¹,

Tika²

2021

Geotechnics

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This paper presents the results of a laboratory investigation into the effect of non-plastic fines on the correlation between liquefaction resistance and the shear wave velocity of sand. For this purpose, undrained stress-controlled cyclic triaxial and bender element tests were performed on clean sand and its mixtures with non-plastic silt. It is shown that the correlation between liquefaction resistance and shear wave velocity depends on fines content and confining effective stress. Based on the test results, correlation curves between field liquefaction resistance and overburden stress corrected shear wave velocity for sand containing various contents of fines are derived. These curves are compared to other previously proposed by field and laboratory studies.

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Section: Liquefaction Resistancesupporting

confidence: 56%

Laboratory-Based Correlation between Liquefaction Resistance and Shear Wave Velocity of Sand with Fines

Papadopoulou¹,

Tika²

2021

Geotechnics

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“…Turning to the question of why the test data of Hsiao & Phan (2016) do not show any correlation between G 0 and ψ, the authors do not have sufficient information to evaluate their data, but would like to make several important observations. First, the fines used in the tests were not non-plastic but with a certain degree of plasticity, and the threshold fines content determined was unusually high ($50%).…”

Section: Discussionmentioning

confidence: 99%

“…27(b)). Finally, and perhaps more importantly, Hsiao & Phan (2016) simply plotted all G 0 values against ψ, without properly identifying and accounting for the effect of confining stress. …”

Section: Discussionmentioning

confidence: 99%

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Shear wave velocity and stiffness of sand: the role of non-plastic fines

et al. 2018

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“…However, within a narrow band of fines content, the influence of fines content is not significant. Hsiao and Phan 41 examined the test data of sand‐silt mixtures, and the correlation between

G

and

ψ

was not discovered. In addition, Rahman et al 42 .…”

Section: Constitutive Frameworkmentioning

confidence: 99%

Formulation and implementation of an elastoplastic constitutive model for sand‐fines mixtures

Sun

Chu

Xiao

2021

Num Anal Meth Geomechanics

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Sand‐fines mixtures are commonly used engineered materials, and their mechanical behavior is significantly affected by density, confining pressure, as well as fines content. Although many laboratory tests have been performed on sand‐fines mixtures, few works have been conducted on its constitutive law. To adequately describe the mechanical behavior of sand with different fines content, a novel elastoplastic constitutive model was developed for sand‐fines mixtures by incorporating an equivalent granular state parameter into Rowe's stress‐dilatancy equation, plastic modulus, and in conjunction with the correlation between the critical state and fines content. Subsequently, the Runge‐Kutta schemes with automatic error control are adopted for the proposed model and implemented in a finite element code. The performance of the fines‐state‐dependent model with the Runge‐Kutta schemes, in terms of accuracy, efficiency and convergence, is verified by analyzing element scale tests and boundary value problems. The comparisons of simulated and experimental results demonstrate that the fines‐state‐dependent model can effectively capture the strain hardening (or softening) and contraction (or dilatancy) behaviors of sand‐fines mixtures under drained conditions. In addition, the key features under undrained conditions, such as flow, limited flow, and non‐flow behaviors can also be reasonably reproduced.

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Evaluation of static and dynamic properties of sand–fines mixtures through the state and equivalent state parameters

Cited by 23 publications

References 38 publications

Laboratory-Based Correlation between Liquefaction Resistance and Shear Wave Velocity of Sand with Fines

Laboratory-Based Correlation between Liquefaction Resistance and Shear Wave Velocity of Sand with Fines

Shear wave velocity and stiffness of sand: the role of non-plastic fines

Formulation and implementation of an elastoplastic constitutive model for sand‐fines mixtures

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