Seismic ground motion is profoundly affected by geometrical and mechanical properties of
soil deposits overlaying bedrock. Local seismic ground response of saturated soil deposits
was studied in literature by applying the effects of soil stress state and index properties on
the strain-dependent normalized shear modulus reduction, G/G0, and damping ratio, D,
curves in an equivalent linear analysis. However, experimental investigations revealed that,
G0, G/G0, and D of unsaturated soils are influenced by stress state as well as suction. This …

Seismic ground motion is profoundly affected by geometrical and mechanical properties of
soil deposits overlaying bedrock. Local seismic ground response of saturated soil deposits
was studied in literature by applying the effects of soil stress state and index properties on
the strain-dependent normalized shear modulus reduction, G/G 0, and damping ratio, D,
curves in an equivalent linear analysis. However, experimental investigations revealed that,
G 0, G/G 0, and D of unsaturated soils are influenced by stress state as well as suction. This …