Liquefaction of unsaturated soils- volume change and residual shear strength

Tran, Khai Hoan; Imanzadeh, S.; Taïbi, Saïd; Souli, Hanène; Fleureau, Jean‐Marie; Hattab, Mahdia

doi:10.1080/19648189.2022.2075471

Cited by 4 publications

(3 citation statements)

References 42 publications

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“…15 The relationship between excess pore water pressure and strain for samples with an initial mean effective stress of 400kPa Fig. 16 The stress paths for samples with an initial mean effective stress of 400kPa Fig. 17 The relationship between the initial relative density and undrained critical stress ratio Fig.…”

Section: Discussionmentioning

confidence: 99%

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Experimental Study of Static Liquefaction Potential Considering the Uncertainty of the Critical State Line (CSL)

Huang,

Shamas,

Hoàn

et al. 2024

Preprint

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This study aims to explore the undrained shear behavior and static liquefaction potential of sand in both overconsolidated and normally consolidated states. Based on the uncertainty associated with the Critical State Line (CSL) and the state parameter (\(\psi\)) of the samples defined as the current void ratio (es) and the critical void ratio (ec) at the same mean effective stress (p'), the samples were classified into four states: heavily overconsolidation state (HO), intermediate overconsolidation state (IO), lightly overconsolidation state (LO), and normally consolidation state (NC). The latter corresponds to a very loose sand with initial relative density (Dr) of about − 20%. The study findings revealed significant differences in the undrained shear behavior among samples in different consolidation states. Samples in heavily (HO) and intermediate (IO) overconsolidation states exhibited a tendency of initial contraction followed by dilation, with the main difference lying in the presence of a distinct peak strength (qpeak). In contrast, samples lightly overconsolidated (LO) and normally consolidated (NC) only showed a contraction tendency, with the main difference being in residual strength (qresidual). Finally, exploration was conducted into the potential for static liquefaction under different consolidation states. The study found that for overconsolidated samples, their liquefaction potential is mainly controlled by the state parameter (\(\psi\)). As the state parameter increases, the sample's liquefaction potential also increases. Conversely, for normally consolidated samples, their liquefaction potential is determined by the initial mean effective stress (p'0), with the potential decreasing as the initial mean effective stress (p'0) increases.

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Section: Discussionmentioning

confidence: 99%

“…The earliest understanding of soil liquefaction was based on the observation of soil exhibiting liquid flow characteristics following an earthquake, which is known as dynamic liquefaction. This phenomenon is characterized by cyclic loading of the soil due to external loads and has been widely studied [11][12][13][14][15][16].…”

Section: Introductionmentioning

confidence: 99%

Experimental Study of Static Liquefaction Potential Considering the Uncertainty of the Critical State Line (CSL)

Huang,

Shamas,

Hoàn

et al. 2024

Preprint

Self Cite

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“…The works [9][10][11][12][13][14] address the issue of quantitative description of the moment of liquefaction of water-saturated sands in the third phase of deformation. The authors focused on the peculiarities of soil behavior directly during liquefaction.…”

Section: Highlighting Previously Unresolved Parts Of the Overall Problemmentioning

confidence: 99%

Investigation of the Behavior of Sand Under Repeated Dynamic Loads Using a Large-Scale Model of Soil Base

Havryliuk,

Aleksandrovych,

Kobzar

2024

IOP Conf. Ser.: Earth Environ. Sci.

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Results of vibration stamp tests in container with soil are considering. Appearance and progress with time of supplementary settlement of sandy foundation soils under dynamic loads is analyzing. Appearance and progress with time of supplementary settlement of sandy foundation soils under harmonic loads are depended on key parameters of the load. According to our experimental studies we had identified the behavior of settlement in time, with various combinations of frequency, amplitude of forced vibration and static load as follows. After reaching settlement stabilization from the static load applied and the inclusion of the vibrator, depending on the amplitude of the forced oscillations of the vibrator it can starts an additional to the settlement already occurred from static loading. It could be two different kinds if vibrocreep settlement: decaying and sustained settlements depends to the mathematical law most reasonably could be used to approximate the experimental data.

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Uncertainties of Numerical Simulation for Static Liquefaction Potential of Saturated Soils

Huang,

Shamas,

Tran

et al. 2023

Lecture Notes in Mechanical Engineering

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Liquefaction of unsaturated soils- volume change and residual shear strength

Cited by 4 publications

References 42 publications

Experimental Study of Static Liquefaction Potential Considering the Uncertainty of the Critical State Line (CSL)

Experimental Study of Static Liquefaction Potential Considering the Uncertainty of the Critical State Line (CSL)

Investigation of the Behavior of Sand Under Repeated Dynamic Loads Using a Large-Scale Model of Soil Base

Uncertainties of Numerical Simulation for Static Liquefaction Potential of Saturated Soils

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