Design of geotechnical engineering problems that involve (?R;u>
dynamic loading of soils and soil–structure interaction &J(+XJM%
systems requires the determination of two important 4j^-n_T
parameters, the shear modulus and the damping q-kMqnQ
of the soils. The recent developments in the numerical )a"rj5~-
analyses for the nonlinear dynamic responses of grounds ^Z1t'- xZ
due to strong earthquake motions have increased the /{@^h#4M1
demand for the dynamic soil properties corresponding mOgsO
to large strain level also. Further, the most common cause </!
`m8 \
of ground failure during earthquakes is the liquefaction &AM<H}>
phenomenon which has produced severe damage all 4 g < F."
over the world. This paper summarizes the methods of };; \&#
determining the dynamic properties as well as potential `2N&{(
for liquefaction of soils. Parameters affecting the dynamic Cq\1t
properties and liquefaction have been brought out. @a-u_|3q
A simple procedure of obtaining the dynamic properties !wP |t#Sc9
of layered ground has been highlighted. Results of a n${,r
series of cyclic triaxial tests on liquefiable sands collected =OY&;d!C
from the sites close to the Sabarmati river belt have been -5;Kyio
presented.
