Design of geotechnical engineering problems that involve qwnVtD
dynamic loading of soils and soil–structure interaction ZqpK}I
systems requires the determination of two important |8[!`T*s
parameters, the shear modulus and the damping H INk&)FC
of the soils. The recent developments in the numerical c93 Ok |
analyses for the nonlinear dynamic responses of grounds w9RBT(u
due to strong earthquake motions have increased the .f;@O qU
demand for the dynamic soil properties corresponding .3n\~Sn
to large strain level also. Further, the most common cause nnE'zk<"
of ground failure during earthquakes is the liquefaction LjW32>B
phenomenon which has produced severe damage all #Dz"g_d
over the world. This paper summarizes the methods of /L@o.[H
determining the dynamic properties as well as potential 9n_Rk W5g
for liquefaction of soils. Parameters affecting the dynamic 4b`Fi@J\
properties and liquefaction have been brought out. X%JyC_~<
A simple procedure of obtaining the dynamic properties Q8QB{*4
of layered ground has been highlighted. Results of a +oO7UWs>6
series of cyclic triaxial tests on liquefiable sands collected (J nEso-V
from the sites close to the Sabarmati river belt have been T gDT
presented.
