Design of geotechnical engineering problems that involve e 1W9Z $m
dynamic loading of soils and soil–structure interaction &dqC
=oK]
systems requires the determination of two important 82w='~y
parameters, the shear modulus and the damping J|DID+M
of the soils. The recent developments in the numerical VA9"
Au
analyses for the nonlinear dynamic responses of grounds k<mfBNvuo
due to strong earthquake motions have increased the GqFDN],Wp
demand for the dynamic soil properties corresponding u$7o d$&S
to large strain level also. Further, the most common cause =.@{ uu;
of ground failure during earthquakes is the liquefaction t)Iu\bP
phenomenon which has produced severe damage all '\I.P
over the world. This paper summarizes the methods of eOZ0L1JM!
determining the dynamic properties as well as potential WU:~T.Su
for liquefaction of soils. Parameters affecting the dynamic [L.+N@M
properties and liquefaction have been brought out. G(LGa2;Zg
A simple procedure of obtaining the dynamic properties
f' hrS}e
of layered ground has been highlighted. Results of a W'Wr8~{h
series of cyclic triaxial tests on liquefiable sands collected 7$ vs X
from the sites close to the Sabarmati river belt have been ] m$;ra]
presented.
