Design of geotechnical engineering problems that involve "p{cz(
dynamic loading of soils and soil–structure interaction \dIQhF%%2
systems requires the determination of two important %95'oW)lo
parameters, the shear modulus and the damping 6W abw:
of the soils. The recent developments in the numerical Sn lKPd
analyses for the nonlinear dynamic responses of grounds @^';[P!
due to strong earthquake motions have increased the F]SA1ry
demand for the dynamic soil properties corresponding `/z6Q"
to large strain level also. Further, the most common cause /\_wDi+#
of ground failure during earthquakes is the liquefaction +#c3Y;JP
phenomenon which has produced severe damage all ~yvOR`2Gg
over the world. This paper summarizes the methods of %4Thb\ T
determining the dynamic properties as well as potential Lz9t9AoB
for liquefaction of soils. Parameters affecting the dynamic =(~UK9`
properties and liquefaction have been brought out. bf3Njma%
A simple procedure of obtaining the dynamic properties 02~+$R]L
of layered ground has been highlighted. Results of a CK+GD "Z$
series of cyclic triaxial tests on liquefiable sands collected a|x1aN0
from the sites close to the Sabarmati river belt have been $rh {f<
presented.