Design of geotechnical engineering problems that involve p14$XV
dynamic loading of soils and soil–structure interaction =%> E8)Jb
systems requires the determination of two important :
4lR`%
parameters, the shear modulus and the damping H15!QxD#
of the soils. The recent developments in the numerical Eg&Q,dH[
analyses for the nonlinear dynamic responses of grounds CI \O)iB
due to strong earthquake motions have increased the =z<sx2#*
demand for the dynamic soil properties corresponding +]yVSns
3
to large strain level also. Further, the most common cause `'mRGz7t
of ground failure during earthquakes is the liquefaction 'Cz]p~oF
phenomenon which has produced severe damage all XgKYL< k?S
over the world. This paper summarizes the methods of eYjF"Aq
determining the dynamic properties as well as potential DIvxut
for liquefaction of soils. Parameters affecting the dynamic VC Ay~,
properties and liquefaction have been brought out. ?v F8 y;Jh
A simple procedure of obtaining the dynamic properties dvY3=~'
of layered ground has been highlighted. Results of a 1GLb^:~A
series of cyclic triaxial tests on liquefiable sands collected DAtAc(05)
from the sites close to the Sabarmati river belt have been 0|0IIgy
presented.
