Design of geotechnical engineering problems that involve t|a2;aq_
dynamic loading of soils and soil–structure interaction V\{ clJ\U
systems requires the determination of two important 3cFf#a #
parameters, the shear modulus and the damping Vc_'hz]Z
of the soils. The recent developments in the numerical AZ0;3<FfLp
analyses for the nonlinear dynamic responses of grounds 0vFD3}~>
due to strong earthquake motions have increased the ADS9DiX/
demand for the dynamic soil properties corresponding &wi e]
to large strain level also. Further, the most common cause ?:
N @!jeJ
of ground failure during earthquakes is the liquefaction 9`wZz~hL"
phenomenon which has produced severe damage all Hx#; Z
over the world. This paper summarizes the methods of <nE>XAI_7
determining the dynamic properties as well as potential jB`,u|FG
for liquefaction of soils. Parameters affecting the dynamic w0 ht
properties and liquefaction have been brought out. `rgn<I"
A simple procedure of obtaining the dynamic properties S)lkz'tdk
of layered ground has been highlighted. Results of a D'7SAFOM
series of cyclic triaxial tests on liquefiable sands collected
5Ec6),+&
from the sites close to the Sabarmati river belt have been E7NV ^4h
presented.
