Design of geotechnical engineering problems that involve =hxj B*")
dynamic loading of soils and soil–structure interaction v!27q*;8H
systems requires the determination of two important N`1:U
4}
parameters, the shear modulus and the damping U']DB h
of the soils. The recent developments in the numerical 7dyGC:YuTL
analyses for the nonlinear dynamic responses of grounds |&eZ[Sy(=l
due to strong earthquake motions have increased the - D?T0>
demand for the dynamic soil properties corresponding #56}RV1
to large strain level also. Further, the most common cause xQ\/6|
of ground failure during earthquakes is the liquefaction Eq c&iS~
phenomenon which has produced severe damage all kE;h[No&K
over the world. This paper summarizes the methods of TCYjj:/
determining the dynamic properties as well as potential kA1] o
for liquefaction of soils. Parameters affecting the dynamic X|^E+
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properties and liquefaction have been brought out. |6'(yn
A simple procedure of obtaining the dynamic properties ,+-l1GpL
of layered ground has been highlighted. Results of a .0k ltnB
series of cyclic triaxial tests on liquefiable sands collected 8u
Tq0d6(
from the sites close to the Sabarmati river belt have been tsVQX vo
presented.
