Paper Information

Journal:   JOURNAL OF GEOTECHNICAL GOLOGY (APPLIED GEOLOGY)   FALL 2009 , Volume 5 , Number 3; Page(s) 178 To 192.
 
Paper: 

EQUIVALENT LINEAR OF S SOIL BEHAVIOR IN FREQUENCY DOMAIN, SOUTHERN REGION OF YAZD CITY

 
 
Author(s):  ADIB A.*
 
* DEPARTMENT OF MINING ENGINEERING, ISLAMIC AZAD UNIVERSITY, SOUTH TEHRAN BRANCH, TEHRAN-IRAN
 
Abstract: 
In this research, ground motion analysis and site effect ground motion and site effect analyses were conducted in the south of Yazd city by using geotechnical data, down hole seismic profiles, strong ground motion and accelerograms with regard to changes in frequency. To estimate the soil non-elastic response and equivalent linear behavior of soil, an iterative loop was utilized. Non-linear behavior of stress-strain means shear modulus change in different ways. The maximum of acceleration records of ground motion in bedrock for a 475 years return period are used for this research work is 0.219 g. Taking the above mentioned return period into consideration, for this borehole the values of resonance frequency and alluvium resonance ratio were measured as 3.4 and 1.4, respectively. On the basis of average resonance ratios and frequencies obtained from all the models, the amplification of shear waves are intensified in frequencies 3 to 4 Hz with a an amplification ratio 1.6 Vs 30, mean is 360 m/s.
 
Keyword(s): LANDSLIDE, HORIZONTAL SPEED, EARTHQUAKE, NATURAL DAMS, BREAKING OF DAMS
 
References: 
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