Volume 11, Number 2 and B (Transaction B: Geotechnical Engineering 2013) | IJCE 2013, 11(2 and B): 150-155 | Back to browse issues page


XML Print


Download citation:
BibTeX | RIS | EndNote | Medlars | ProCite | Reference Manager | RefWorks
Send citation to:

Biglari M, Ashayeri I. Seismic ground response analysis of unsaturated soil deposits. IJCE. 2013; 11 (2) :150-155
URL: http://ijce.iust.ac.ir/article-1-697-en.html

Abstract:   (3546 Views)

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 study presents the results of linear and equivalent linear seismic ground response

analysis of unsaturated soil deposits incorporating suction effects on G/G0 and D curves. Seismic ground response analyses were

done with the computer program EERA for three sets of soil profiles, which are included in saturated, constant and linearly

variable suction unsaturated soil deposits. The results of current study present the magnitude of variation in natural frequency,

amplification ratio and spectral acceleration of unsaturated soil deposits.

Full-Text [PDF 1992 kb]   (1158 Downloads)    
Type of Study: Technical Note | Subject: Seismic Geotechnique

Add your comments about this article : Your username or email:
Write the security code in the box

© 2015 All Rights Reserved | International Journal of Civil Engineering

Designed & Developed by : Yektaweb