Design of geotechnical engineering problems that involve =F 9!)r
dynamic loading of soils and soil–structure interaction WUfPLY_c(
systems requires the determination of two important s k>E(Myo
parameters, the shear modulus and the damping a? K 3/0G
of the soils. The recent developments in the numerical N)0V 6 q"
analyses for the nonlinear dynamic responses of grounds ZOIx+%/Vd#
due to strong earthquake motions have increased the Bkaupvv9S
demand for the dynamic soil properties corresponding X8uAwHa6F
to large strain level also. Further, the most common cause ]Te,m}E
of ground failure during earthquakes is the liquefaction y(92 Th$
phenomenon which has produced severe damage all $! q(-+(
over the world. This paper summarizes the methods of 81jVjf?`
determining the dynamic properties as well as potential W+5<=jXFB
for liquefaction of soils. Parameters affecting the dynamic VX{9g#y$j
properties and liquefaction have been brought out. '2= $pw
A simple procedure of obtaining the dynamic properties 1RM@~I$0
of layered ground has been highlighted. Results of a B K/_hNz
series of cyclic triaxial tests on liquefiable sands collected Smc= -M}
from the sites close to the Sabarmati river belt have been zMI_8lNz
presented.
