Design of geotechnical engineering problems that involve ns/*WH&[x
dynamic loading of soils and soil–structure interaction \|]+sQ WQ
systems requires the determination of two important #+h#b%8
parameters, the shear modulus and the damping 6I _ 4 {
of the soils. The recent developments in the numerical g ^=Ruh+
analyses for the nonlinear dynamic responses of grounds hDoFF8)c
due to strong earthquake motions have increased the 5YI6$ZdQ
demand for the dynamic soil properties corresponding Y@Ry
oJ
to large strain level also. Further, the most common cause BP&] t1p
of ground failure during earthquakes is the liquefaction c&<Ei1
phenomenon which has produced severe damage all " 9 vL+Hh
over the world. This paper summarizes the methods of |hDN$By
determining the dynamic properties as well as potential I&^hG\D
for liquefaction of soils. Parameters affecting the dynamic X$%W&:
properties and liquefaction have been brought out. Kj?hcG l[
A simple procedure of obtaining the dynamic properties }U}ppq0Eo
of layered ground has been highlighted. Results of a l F7".
series of cyclic triaxial tests on liquefiable sands collected G_k_qP^ :
from the sites close to the Sabarmati river belt have been Sq2 8=1%
presented.
