Many authors have described and studied
liquefaction of granular soils (Seed et al.1971;
Poulos et al. 1985; Ishihara K. 1993). It occurs
when vibrations or water pressure within
soil cause the solid particles to cease having
contact with one another. This condition is
generally caused by the passage of seismic
waves through loose or very loose saturated
sandy soils. The soil behaves temporarily as a
liquid and loses its ability to support weight.
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are typical manifestations of sand liquefaction
(Marcuson, 1978).
Shear wave velocity (Vs
) has been
correlated with cyclic stress ratio to assess
soil liquefaction potential. Vs
is estimated
from cross-hole or down-hole seismic surveys
(Stokoe and Narzian, 1985; Tokimatsu et al.,
1990; Kanyen et al., 1992; Andrus and Stokoe,
1997; Yu Shizhou, et al., 2008). In this paper
we present a method in which shear wave
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Analysis Method (MAM) and from Multichannel
Analysis of Surface Waves (MASW). Combining
MAM and MASW allowed us to reach a
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frequency waves generated by sledgehammer
impacts travel through shallower depths and
can be combined with lower frequency data
from microtremors that travel through greater
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trends (Park et al., 2007).
We applied a combinati