Design of geotechnical engineering problems that involve mp1ttGUtM
dynamic loading of soils and soil–structure interaction ix&'0IrX*
systems requires the determination of two important lP3h<j
parameters, the shear modulus and the damping " r$ /
of the soils. The recent developments in the numerical -[heV| $;
analyses for the nonlinear dynamic responses of grounds %u!b& 5]e
due to strong earthquake motions have increased the [>Fm [5x
demand for the dynamic soil properties corresponding W5 ec
to large strain level also. Further, the most common cause #| f ~s
of ground failure during earthquakes is the liquefaction FFvCi@oT
phenomenon which has produced severe damage all *x(Jq?5O7X
over the world. This paper summarizes the methods of k\aK?(.RC7
determining the dynamic properties as well as potential sWqM?2 g
for liquefaction of soils. Parameters affecting the dynamic -t-tn22
properties and liquefaction have been brought out. [*4fwk^
A simple procedure of obtaining the dynamic properties 5v
_P
Oq
of layered ground has been highlighted. Results of a ,hRN\Kt)p
series of cyclic triaxial tests on liquefiable sands collected caq} &A]C
from the sites close to the Sabarmati river belt have been XKU=oI0 \j
presented.
