Design of geotechnical engineering problems that involve C]*9:lK
dynamic loading of soils and soil–structure interaction z _! P0`
systems requires the determination of two important %^ ^2
parameters, the shear modulus and the damping 4nkH0 dJQ
of the soils. The recent developments in the numerical s2g}IZfo
analyses for the nonlinear dynamic responses of grounds wM (!9Ws3
due to strong earthquake motions have increased the ]tH/87qJ
demand for the dynamic soil properties corresponding ^mFuZ~g;?
to large strain level also. Further, the most common cause a}`4BMi3
of ground failure during earthquakes is the liquefaction gqNd@tYI
phenomenon which has produced severe damage all lE 08UEk1i
over the world. This paper summarizes the methods of )vO Zp&
determining the dynamic properties as well as potential }txHuq1Q.
for liquefaction of soils. Parameters affecting the dynamic ?yddr`?W
properties and liquefaction have been brought out. tc@v9`^_
A simple procedure of obtaining the dynamic properties -"Lia!Q]M
of layered ground has been highlighted. Results of a 'mpY2|]\$
series of cyclic triaxial tests on liquefiable sands collected 2i',
e
from the sites close to the Sabarmati river belt have been *r p@`W5
presented.
