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Dynamic Behavior of Granular Soils at Shallow Depths from 1 g Shaking Table Tests

Sadrekarimi, Abouzar

Very few studies have investigated soil shear modulus and damping characteristics at very shallow depths (<3 m). In this study, average shear stress and strain histories are determined from reduced-scale shaking table model experiments at small confining stresses (<20 kPa). Shear modulus reduction of sands becomes more nonlinear at reduced confining stress levels, whereas sand damping ratio increases with decreasing effective confining stress and increasing initial driving shear stress. A modified hyperbolic relationship is evaluated that provides a good estimate of the modulus reduction data for sands and gravels at shallow depths.

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Dynamic Behavior of Granular Soils at Shallow Depths from 1 g Shaking Table Tests

Sadrekarimi, Abouzar

Very few studies have investigated soil shear modulus and damping characteristics at very shallow depths (<3 m). In this study, average shear stress and strain histories are determined from reduced-scale shaking table model experiments at small confining stresses (<20 kPa). Shear modulus reduction of sands becomes more nonlinear at reduced confining stress levels, whereas sand damping ratio increases with decreasing effective confining stress and increasing initial driving shear stress. A modified hyperbolic relationship is evaluated that provides a good estimate of the modulus reduction data for sands and gravels at shallow depths.

Dynamic Behavior of Granular Soils at Shallow Depths from 1 g Shaking Table Tests

Sadrekarimi, Abouzar

Very few studies have investigated soil shear modulus and damping characteristics at very shallow depths (<3 m). In this study, average shear stress and strain histories are determined from reduced-scale shaking table model experiments at small confining stresses (<20 kPa). Shear modulus reduction of sands becomes more nonlinear at reduced confining stress levels, whereas sand damping ratio increases with decreasing effective confining stress and increasing initial driving shear stress. A modified hyperbolic relationship is evaluated that provides a good estimate of the modulus reduction data for sands and gravels at shallow depths.

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Title:

Dynamic Behavior of Granular Soils at Shallow Depths from 1 g Shaking Table Tests

Contributors:

Sadrekarimi, Abouzar (author)

Published in:

Journal of Earthquake Engineering ; 17 ; 227-252

Publication date:

2013-02-01

Size:

26 pages

ISSN:

1363-2469 , 1559-808X

DOI:

https://doi.org/10.1080/13632469.2012.691616

Type of media:

Article (Journal)

Type of material:

Electronic Resource

Language:

English

Keywords:

Shear Modulus , Damping Ratio , Site Response Analysis , Soil Dynamics , Cyclic Stress Path , Gravel , Sand , Shaking Table Model Test

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