Design of geotechnical engineering problems that involve
#Y%(CI
dynamic loading of soils and soil–structure interaction >*]dB| 2
systems requires the determination of two important Tf{lH9ca$
parameters, the shear modulus and the damping zb,YYE1
of the soils. The recent developments in the numerical Q u_ =K_W
analyses for the nonlinear dynamic responses of grounds Memb `3
due to strong earthquake motions have increased the 1/t yne= m
demand for the dynamic soil properties corresponding ym;I(TC+
to large strain level also. Further, the most common cause qp{3I("_
of ground failure during earthquakes is the liquefaction U)6Ew4uRxV
phenomenon which has produced severe damage all 9
M90X8
over the world. This paper summarizes the methods of cES8%UC^i
determining the dynamic properties as well as potential ZU68\c L
for liquefaction of soils. Parameters affecting the dynamic ZE[NQ8
properties and liquefaction have been brought out. H.]p\ UY9
A simple procedure of obtaining the dynamic properties 's\rQ- TV
of layered ground has been highlighted. Results of a Sah!|9
series of cyclic triaxial tests on liquefiable sands collected ! %/2^
from the sites close to the Sabarmati river belt have been n3_| # 1Qu
presented.
