Design of geotechnical engineering problems that involve +/r h8?
dynamic loading of soils and soil–structure interaction kfq<M7y
systems requires the determination of two important 06I(01M1
parameters, the shear modulus and the damping %>t4ib_8
of the soils. The recent developments in the numerical *_"lXcG .
analyses for the nonlinear dynamic responses of grounds orhze Oi\
due to strong earthquake motions have increased the i}@5<&J
demand for the dynamic soil properties corresponding =Ds&ArG
to large strain level also. Further, the most common cause FYH ^axpp
of ground failure during earthquakes is the liquefaction ;Bat--K7+
phenomenon which has produced severe damage all v1$ }JX
over the world. This paper summarizes the methods of %:y"o_X_
determining the dynamic properties as well as potential BJjx y0+
for liquefaction of soils. Parameters affecting the dynamic 5Zl7crA [
properties and liquefaction have been brought out. z5W;-sC z
A simple procedure of obtaining the dynamic properties J7k=5Fqej;
of layered ground has been highlighted. Results of a
5"w%
series of cyclic triaxial tests on liquefiable sands collected ;0}C2Cz'
from the sites close to the Sabarmati river belt have been 2ZKy7p0/
presented.
