when Loose sand and silt is saturated with water so that can behave like a liquid under the earthquakes forces. Earthquake waves cause water pressures to increase in the sediment and the sand grains to lose contact with each other, leading the sediment to lose strength and behave like a liquid.
Buildings can be damaged due to the ground subsidence. Liquefaction is a hazard in areas that have groundwater near the surface and sandy soil. Is it enough to know the value of Vs since it represent the soil condition and water content well!!!!
can you suggest some interesting articles?
There are several methods to map liquefaction hazard map. You did not mention the method you are going to use. So it is difficult to enumerate the parameters. For example, if you map the liquefaction hazard by using SPT or CPT (e.g., Liao & Mayne, 2002; Beroya, et al., 2009; Seed, et al., 1985; Youd, et al., 2001), then N value and CPT values are the most important parameter.
Sir,
The liquefaction hazard can be mapped aporoximately if you have Vs values. Vs represenrs the soil condition and there are correlations available to convert Cs to SPT. Tou need surface level PGA value as well to estimate probable liquefaction hazard as CSR depends on PGA. Please reply for any further clarifications.
Dear Sreevalsa,
Could you please send me some specific references?
Thank you
Article Assessment of seismic hazard and liquefaction potential of G...
Sol à l'etat lache....la présence de nappe freatique....condition non drainé....Exitation par seisme.....ect
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