Design of geotechnical engineering problems that involve kxW>D a<6
dynamic loading of soils and soil–structure interaction 0Ad ~!Y+1
systems requires the determination of two important ^CPfo/!
parameters, the shear modulus and the damping i"]8Zw_D
of the soils. The recent developments in the numerical f 4I#a&DO
analyses for the nonlinear dynamic responses of grounds 8>{W :?I
due to strong earthquake motions have increased the Hm
VTfH'
demand for the dynamic soil properties corresponding )6Q0 f
to large strain level also. Further, the most common cause ~sn F20
of ground failure during earthquakes is the liquefaction 2]3HX3
phenomenon which has produced severe damage all Mg QU6O<
over the world. This paper summarizes the methods of gww^?j#
determining the dynamic properties as well as potential _qeuVi=A
for liquefaction of soils. Parameters affecting the dynamic MXF"F:-Kn
properties and liquefaction have been brought out. P"x-7>c>Y
A simple procedure of obtaining the dynamic properties 0['"m^l0S
of layered ground has been highlighted. Results of a = (gmd>N
series of cyclic triaxial tests on liquefiable sands collected nbAS pa(
from the sites close to the Sabarmati river belt have been 3Y{)(%I
presented.
