Design of geotechnical engineering problems that involve XrS . [
dynamic loading of soils and soil–structure interaction 58\Rl
systems requires the determination of two important *&9_+F8ly
parameters, the shear modulus and the damping xQ\/6|
of the soils. The recent developments in the numerical <e-9We."
analyses for the nonlinear dynamic responses of grounds kE;h[No&K
due to strong earthquake motions have increased the TCYjj:/
demand for the dynamic soil properties corresponding kA1] o
to large strain level also. Further, the most common cause -lV]( (I&
of ground failure during earthquakes is the liquefaction |6'(yn
phenomenon which has produced severe damage all ,+-l1GpL
over the world. This paper summarizes the methods of .0k ltnB
determining the dynamic properties as well as potential 8u
Tq0d6(
for liquefaction of soils. Parameters affecting the dynamic tsVQX vo
properties and liquefaction have been brought out. N3
.!E|
A simple procedure of obtaining the dynamic properties ,#hS#?t
of layered ground has been highlighted. Results of a -'BC*fV r
series of cyclic triaxial tests on liquefiable sands collected Gl}[1<~o
from the sites close to the Sabarmati river belt have been 0ubT/
presented.
