Design of geotechnical engineering problems that involve b~=0[Rv
dynamic loading of soils and soil–structure interaction 5"XC$?I<}
systems requires the determination of two important d.UQW
yLG
parameters, the shear modulus and the damping 7%f&M>/
of the soils. The recent developments in the numerical oVFnl A
analyses for the nonlinear dynamic responses of grounds Rk!X]-`=
due to strong earthquake motions have increased the ;oZ)Wt
demand for the dynamic soil properties corresponding kF(n!2"W
to large strain level also. Further, the most common cause =X\^ J
of ground failure during earthquakes is the liquefaction js i Sg/
phenomenon which has produced severe damage all GZI`jS"lU
over the world. This paper summarizes the methods of WHXj8*]6
determining the dynamic properties as well as potential 'k;rH !R
for liquefaction of soils. Parameters affecting the dynamic I/Jb!R ~
properties and liquefaction have been brought out. ^=>Tk$ _2
A simple procedure of obtaining the dynamic properties a=cvCf
of layered ground has been highlighted. Results of a ?POUt RN
series of cyclic triaxial tests on liquefiable sands collected Ar*^ ; /
from the sites close to the Sabarmati river belt have been H0m|1
7
presented.
