Design of geotechnical engineering problems that involve ? W( 6
dynamic loading of soils and soil–structure interaction xGU(n _ Y
systems requires the determination of two important Qc[3Fq,f
parameters, the shear modulus and the damping S a4W`
of the soils. The recent developments in the numerical kN%MP 6? J
analyses for the nonlinear dynamic responses of grounds hzI|A~MFB
due to strong earthquake motions have increased the A<6%r7&B'
demand for the dynamic soil properties corresponding {t Thy#
to large strain level also. Further, the most common cause M;0]u.D*=
of ground failure during earthquakes is the liquefaction fZxIY,
phenomenon which has produced severe damage all U,+[5sbo
over the world. This paper summarizes the methods of v^ /Q 8Q
determining the dynamic properties as well as potential Fbu5PWhlc
for liquefaction of soils. Parameters affecting the dynamic RN)dS>$
properties and liquefaction have been brought out. `60gFVu
A simple procedure of obtaining the dynamic properties 4;HJ;0-ps
of layered ground has been highlighted. Results of a MwfOy@|N
series of cyclic triaxial tests on liquefiable sands collected }lK3-2Pk
from the sites close to the Sabarmati river belt have been gJ ;_$`
presented.
