Design of geotechnical engineering problems that involve r , b
dynamic loading of soils and soil–structure interaction \!S C;
systems requires the determination of two important (9cIU2e
parameters, the shear modulus and the damping r`S]`& #}(
of the soils. The recent developments in the numerical j ^_ G
analyses for the nonlinear dynamic responses of grounds Szg<;._J
due to strong earthquake motions have increased the #Jm_~k
demand for the dynamic soil properties corresponding '|]zBpz
to large strain level also. Further, the most common cause |f w+{f
of ground failure during earthquakes is the liquefaction 5n9F\T5
phenomenon which has produced severe damage all "%. #/!RG
over the world. This paper summarizes the methods of 3}h&/KN{
determining the dynamic properties as well as potential *:&fw'vd,
for liquefaction of soils. Parameters affecting the dynamic @#T?SNIL5
properties and liquefaction have been brought out. 'm2,7]
A simple procedure of obtaining the dynamic properties *K+*0_
of layered ground has been highlighted. Results of a G %#us3x
series of cyclic triaxial tests on liquefiable sands collected 2}}~\C}o+
from the sites close to the Sabarmati river belt have been U3z a}3
presented.
