Design of geotechnical engineering problems that involve ta i
dynamic loading of soils and soil–structure interaction | O =Fz3)
systems requires the determination of two important O {u^&V]
parameters, the shear modulus and the damping l8rBp87Q
of the soils. The recent developments in the numerical IWbW=0IsS
analyses for the nonlinear dynamic responses of grounds C QO gR GW
due to strong earthquake motions have increased the YbjeM6#E
demand for the dynamic soil properties corresponding ,QU2xw D[
to large strain level also. Further, the most common cause "_dh6naZX
of ground failure during earthquakes is the liquefaction TNs ;#Q
phenomenon which has produced severe damage all }$E cNm$%
over the world. This paper summarizes the methods of >5G2!Ns'
determining the dynamic properties as well as potential yf5X=f .%@
for liquefaction of soils. Parameters affecting the dynamic aM/sD=}
properties and liquefaction have been brought out. B^`'2$3
A simple procedure of obtaining the dynamic properties 5[NF
of layered ground has been highlighted. Results of a kH$)0n K
series of cyclic triaxial tests on liquefiable sands collected AW Se!\b
from the sites close to the Sabarmati river belt have been u
x i f-5
presented.
