Design of geotechnical engineering problems that involve 8#/y`ul
dynamic loading of soils and soil–structure interaction PlCj<b1D:
systems requires the determination of two important BAtjYPX'w
parameters, the shear modulus and the damping &^l(RBp]0
of the soils. The recent developments in the numerical lX"6m}~D
analyses for the nonlinear dynamic responses of grounds 6"R'z#{OF
due to strong earthquake motions have increased the <,\ U,jU _
demand for the dynamic soil properties corresponding ABcB-V4
to large strain level also. Further, the most common cause _PSO T5{
of ground failure during earthquakes is the liquefaction
UqNUX?(
phenomenon which has produced severe damage all ?hViOh$.
over the world. This paper summarizes the methods of U>DCra;
determining the dynamic properties as well as potential .eLd0{JtN
for liquefaction of soils. Parameters affecting the dynamic {(I":rt#
properties and liquefaction have been brought out. nu(7Y YCM$
A simple procedure of obtaining the dynamic properties 8e1Z:axn0
of layered ground has been highlighted. Results of a "F[7b!>R
series of cyclic triaxial tests on liquefiable sands collected bP> Kx-%q
from the sites close to the Sabarmati river belt have been %`YR+J/V
presented.
