Design of geotechnical engineering problems that involve X:un4 B}O
dynamic loading of soils and soil–structure interaction 1&Fty'p
systems requires the determination of two important ~"Kf+eFi
parameters, the shear modulus and the damping 6c?;-5.
of the soils. The recent developments in the numerical ;j#(%U] Vp
analyses for the nonlinear dynamic responses of grounds C0eqC u)Q
due to strong earthquake motions have increased the {DI`HB[
demand for the dynamic soil properties corresponding ZSBa+3;z
to large strain level also. Further, the most common cause L$Uy
of ground failure during earthquakes is the liquefaction E!,+#%O>
phenomenon which has produced severe damage all FRSz3^A w
over the world. This paper summarizes the methods of o/;kz i
determining the dynamic properties as well as potential %y{f ] m
for liquefaction of soils. Parameters affecting the dynamic 9L"Z
~CUL
properties and liquefaction have been brought out. wU9H=w^
A simple procedure of obtaining the dynamic properties ~=!d>f~U
of layered ground has been highlighted. Results of a u(Y! _
series of cyclic triaxial tests on liquefiable sands collected TSl:a &
from the sites close to the Sabarmati river belt have been gG 9e.++:
presented.
