Design of geotechnical engineering problems that involve ]e I|_O^u
dynamic loading of soils and soil–structure interaction !Xzy:
systems requires the determination of two important qSQsY:]j0
parameters, the shear modulus and the damping V7 ?Pv
Q
of the soils. The recent developments in the numerical fK4NmdTV
analyses for the nonlinear dynamic responses of grounds uXdR-@80*
due to strong earthquake motions have increased the Q Kh vP>
demand for the dynamic soil properties corresponding cN7|Zs c\
to large strain level also. Further, the most common cause 6z5?9I4[
of ground failure during earthquakes is the liquefaction ?e hUGvV2
phenomenon which has produced severe damage all 0T:ZWRjH
over the world. This paper summarizes the methods of Zv8G[(
determining the dynamic properties as well as potential b\+9#)Up@
for liquefaction of soils. Parameters affecting the dynamic G TW5f
properties and liquefaction have been brought out. Bz6Zy)&sAL
A simple procedure of obtaining the dynamic properties =
$6pL
of layered ground has been highlighted. Results of a gal.<SVW
series of cyclic triaxial tests on liquefiable sands collected E>rWm_G
from the sites close to the Sabarmati river belt have been Cce{aY
presented.
