Design of geotechnical engineering problems that involve X].Igb)2
dynamic loading of soils and soil–structure interaction P2=u -{?~
systems requires the determination of two important Yu_`
>s o
parameters, the shear modulus and the damping 3U&r K)F
of the soils. The recent developments in the numerical Kl]LnN%A{
analyses for the nonlinear dynamic responses of grounds N= {0A
due to strong earthquake motions have increased the /\ u1q <
demand for the dynamic soil properties corresponding (U^f0wJg
to large strain level also. Further, the most common cause _&}z+(Ug
of ground failure during earthquakes is the liquefaction J8#3 ?Lp
phenomenon which has produced severe damage all I W5N^J
over the world. This paper summarizes the methods of H&h"!+t(#
determining the dynamic properties as well as potential xY$@^(Q\
for liquefaction of soils. Parameters affecting the dynamic E=L 1q)
properties and liquefaction have been brought out. 2'5 u}G9
A simple procedure of obtaining the dynamic properties p}d+L{"V
of layered ground has been highlighted. Results of a /Q\|u:oO,
series of cyclic triaxial tests on liquefiable sands collected R/@n+tb e
from the sites close to the Sabarmati river belt have been uG{/yJeU
presented.
