Design of geotechnical engineering problems that involve tX_eN
dynamic loading of soils and soil–structure interaction Cr`
0C
systems requires the determination of two important Dn[1BWM/7
parameters, the shear modulus and the damping C/bttd
of the soils. The recent developments in the numerical 4|(?Wt)5
analyses for the nonlinear dynamic responses of grounds A"'MRYT`
due to strong earthquake motions have increased the jBC9Vt;B
demand for the dynamic soil properties corresponding sHF vzE%
to large strain level also. Further, the most common cause L`#+ZLo
of ground failure during earthquakes is the liquefaction U,=K_oBAq
phenomenon which has produced severe damage all Rc4EFHL
over the world. This paper summarizes the methods of J-}NFWR;t
determining the dynamic properties as well as potential UyQn onS
for liquefaction of soils. Parameters affecting the dynamic lm|`Lh-
properties and liquefaction have been brought out. AUC<
m.
A simple procedure of obtaining the dynamic properties 82X.
of layered ground has been highlighted. Results of a /K^cU;E,
series of cyclic triaxial tests on liquefiable sands collected {OOt+U!
from the sites close to the Sabarmati river belt have been #jX>FXo
presented.