Liquefaction resistance of sand in relation to P-wave velocity

The condition of partial saturation may produce two major impacts in earthquake geotechnical engineering. One is that partial saturation of subsoil can cause much greater amplification in vertical ground motion than for a fully saturated model, as demonstrated by an integrated study on a well-documented case from the Kobe earthquake (Yang & Sato, 2000, 2001). The other impact is related to the liquefaction potential of sandy soils. Laboratory tests (Sherif et al., 1977; Chaney, 1978; Yoshimi et al., 1989) have revealed that the liquefaction resistance of sands depends strongly upon the...