Design of geotechnical engineering problems that involve RO!em~{D*
dynamic loading of soils and soil–structure interaction ,l )7]p*X
systems requires the determination of two important [zsUboCkc
parameters, the shear modulus and the damping 7mT
iO?/y<
of the soils. The recent developments in the numerical P~^VLnw
analyses for the nonlinear dynamic responses of grounds EU,f;H
due to strong earthquake motions have increased the "IuHSjP
demand for the dynamic soil properties corresponding *2^+QKDG
to large strain level also. Further, the most common cause 7mBH#Q)
of ground failure during earthquakes is the liquefaction d#vo)>
phenomenon which has produced severe damage all 3I.0jA#T&/
over the world. This paper summarizes the methods of gCjW !t
determining the dynamic properties as well as potential VoG:3qN
for liquefaction of soils. Parameters affecting the dynamic G4jyi&]
properties and liquefaction have been brought out. @lhjO>@#I
A simple procedure of obtaining the dynamic properties VNT*@^O_=
of layered ground has been highlighted. Results of a 7)zF8V
series of cyclic triaxial tests on liquefiable sands collected 9%&
=n
from the sites close to the Sabarmati river belt have been 0Bn35.K
presented.