Modified Models for Predicting Dynamic Properties of Granular Soil Under Anisotropic Consolidation

Bayat, Meysam; Ghalandarzadeh, Abbas

doi:10.1061/(asce)gm.1943-5622.0001607

Cited by 21 publications

(9 citation statements)

References 37 publications

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“…Based on the results, the effects of relative density, mean effective stress, grading characteristics, induced anisotropy and deposition method on the dynamic properties were assessed. Note that the tests results presented in section 4 are related to the results of the current study and the author's previous published papers (Bayat and Ghalandarzadeh, 2018and 2020.…”

Section: Tests Results and Discussionsupporting

confidence: 64%

“…Previous studies indicated that the value of γ r (i.e. the shear strain corresponding to G/G max =0.5) very significantly affected by the specimen preparation method, the grading characteristics, the mean effective confining pressure and the void ratio and vary less significantly with the induced anisotropy (Bayat and Ghalandarzadeh, 2018and 2020Zhou et al, 2017;Xu et al, 2019). Similar to Eq.…”

Section: The Proposed Modelsmentioning

confidence: 71%

“…The effect of K C on the G/G max -γ and D -γ curves for all subgroups is presented in Figure 4. In general, an increase in K C tends to decrease G/G max and increased D. More details about the effect of K C on the dynamic properties can be found in Bayat and Ghalandarzadeh (2020).…”

Section: Effect Of Induced Anisotropy On G/gmax -γ and D -γ Curvesmentioning

confidence: 98%

“…Test apparatus, materials properties and testing procedure are presented in summary in the following section. More details can be found in Bayat and Ghalandarzadeh (2018and 2020.…”

Section: Databasementioning

confidence: 99%

“…Although many studies have been done on the dynamic properties of granular soils over the past 50 years, only a few studies (e.g., Zhou et al, 2017;Chen et al, 2018;Bayat and Ghalandarzadeh, 2019) have considered the effect of inherent and induced anisotropies on the dynamic properties of granular soils. Zhou et al (2017) and Bayat and Ghalandarzadeh (2020) studied the effects of initial static shear stress on the dynamic properties of granular materials. The results show that the values of G/G max increase with an increasing initial static stress.…”

Section: Introductionmentioning

confidence: 99%

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Universal model forms for predicting the dynamic properties of granular soils

Bayat¹

2020

Acta Geodynamica Et Geomaterialia

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Dynamic soil properties are important parameters for the design of structures subjected to various dynamic/cyclic loading such as earthquake which can be obtained by in situ and laboratory measurements. Numerous empirical and mathematical models have been proposed to predict the dynamic properties of soils, including maximum shear modulus (G max), normalized shear modulus (G/G max-γ) curve, reference shear strain (γ r), minimum damping ratio (D min) and damping ratio (D-γ) curve. However, the majority of the existing models were proposed for specific soil types, loading characteristics, initial soil fabrics and strain ranges. This paper proposes five universal models to estimate the G max , γ r and D min values, and also G/G max-γ and D-γ curves using a database that contains 117 tests on 5 different granular soils. The proposed models include the effect of grading characteristics, void ratio, mean effective confining pressure, consolidation stress ratio (K C) and specimen preparation method. The models are validated using experimental data from previous studies for granular soils. The results indicate that the proposed models are capable of evaluating the dynamic properties of granular soil.

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Section: Tests Results and Discussionsupporting

confidence: 64%

Section: The Proposed Modelsmentioning

confidence: 71%

Section: Effect Of Induced Anisotropy On G/gmax -γ and D -γ Curvesmentioning

confidence: 98%

“…Test apparatus, materials properties and testing procedure are presented in summary in the following section. More details can be found in Bayat and Ghalandarzadeh (2018and 2020.…”

Section: Databasementioning

confidence: 99%