Design of geotechnical engineering problems that involve e0s *
dynamic loading of soils and soil–structure interaction H1b HQB
systems requires the determination of two important fnXYp
!
parameters, the shear modulus and the damping 2/WtOQI B
of the soils. The recent developments in the numerical PpXzWWU":
analyses for the nonlinear dynamic responses of grounds GGM|B}U p
due to strong earthquake motions have increased the [zC1LT Xe
demand for the dynamic soil properties corresponding |Do+=Gr$t@
to large strain level also. Further, the most common cause P}`|8b1W
of ground failure during earthquakes is the liquefaction )2z<5 `
phenomenon which has produced severe damage all $Cgl$A
over the world. This paper summarizes the methods of HZASIsl
determining the dynamic properties as well as potential ^"dVz.
for liquefaction of soils. Parameters affecting the dynamic I45 kPfu
properties and liquefaction have been brought out. ~^{>!wU+
A simple procedure of obtaining the dynamic properties }l>\D~:M
of layered ground has been highlighted. Results of a pwF +ZNo
series of cyclic triaxial tests on liquefiable sands collected h+gaKh=k+
from the sites close to the Sabarmati river belt have been XC(:O(jdA2
presented.
