Design of geotechnical engineering problems that involve Fx5d:!]:$?
dynamic loading of soils and soil–structure interaction ' ~ ,p[
systems requires the determination of two important y]J89
parameters, the shear modulus and the damping PZ{Dv'C
of the soils. The recent developments in the numerical #{k|I$
analyses for the nonlinear dynamic responses of grounds JNkwEZhHyg
due to strong earthquake motions have increased the e&>;*$)
demand for the dynamic soil properties corresponding vhsk 0$f
to large strain level also. Further, the most common cause )K,F]fc+O
of ground failure during earthquakes is the liquefaction Jrg2/ee,*
phenomenon which has produced severe damage all /%0<p,T
over the world. This paper summarizes the methods of p"l3e9&'j
determining the dynamic properties as well as potential qHNE8\9
for liquefaction of soils. Parameters affecting the dynamic 3l3+A+ n
properties and liquefaction have been brought out. Bn61AFy`
A simple procedure of obtaining the dynamic properties cU{e`<xjA
of layered ground has been highlighted. Results of a X@k`3X
series of cyclic triaxial tests on liquefiable sands collected 7<%<Ff@^)O
from the sites close to the Sabarmati river belt have been T UH i5K
presented.
