Design of geotechnical engineering problems that involve =kBWY9 :$,
dynamic loading of soils and soil–structure interaction b" kL)DL1L
systems requires the determination of two important >/9Qgyc 0
parameters, the shear modulus and the damping *@fVog r^
of the soils. The recent developments in the numerical s(r1q$5
analyses for the nonlinear dynamic responses of grounds ]owcx=5q%'
due to strong earthquake motions have increased the ~kOXMLRg
demand for the dynamic soil properties corresponding {S"! c.
to large strain level also. Further, the most common cause
| !xqkmX
of ground failure during earthquakes is the liquefaction gCZm7dgo
phenomenon which has produced severe damage all NI2-*G_M
over the world. This paper summarizes the methods of M!O &\2Q
determining the dynamic properties as well as potential }UWi[UgA
for liquefaction of soils. Parameters affecting the dynamic `C)|}qcC
properties and liquefaction have been brought out. ,h },jkY4
A simple procedure of obtaining the dynamic properties /MbWS(RT
of layered ground has been highlighted. Results of a 1v'|%B;O
series of cyclic triaxial tests on liquefiable sands collected (BZd%!
from the sites close to the Sabarmati river belt have been ;BW-ag \9
presented.
