Design of geotechnical engineering problems that involve w i hH?~]
dynamic loading of soils and soil–structure interaction un shH <
systems requires the determination of two important 3j,Q`+l/6d
parameters, the shear modulus and the damping 1)9sf0LyU
of the soils. The recent developments in the numerical A54N\x,
analyses for the nonlinear dynamic responses of grounds j;']cWe
due to strong earthquake motions have increased the sqla}~CiX
demand for the dynamic soil properties corresponding ]P#X VDn+;
to large strain level also. Further, the most common cause D5$wT I
of ground failure during earthquakes is the liquefaction H7 0LhN
phenomenon which has produced severe damage all Q<z_/ j9
over the world. This paper summarizes the methods of E>&n.%
determining the dynamic properties as well as potential ,%n\ =
for liquefaction of soils. Parameters affecting the dynamic @L>q (Kg
properties and liquefaction have been brought out. D Gr>
2
A simple procedure of obtaining the dynamic properties LL] zT H0
of layered ground has been highlighted. Results of a IK ABB W
series of cyclic triaxial tests on liquefiable sands collected qgE 73.!`6
from the sites close to the Sabarmati river belt have been d1T,eJ}
presented.
