Hi,

I never performed the field test, i suggest you to read USGS files, such as Alang yong (2013)

https://pubs.usgs.gov/of/2013/1102/of2013-1102_text.pdf

it will help you.

Thank you Sadiq for your kind information.

Hello

This may be a difficult question to answer for a stratified soil deposit. However, if the soil is assumed to be uniform then the soil thickness can be computed from

H = (1/4/f1)*sqrt(G/ρ)

where G and ρ are shear modulus and soil density

f1 = predominant frequency if it is assumed that it corresponds to the fundamental natural frequency of vibration of the soil layer.

Hoping that this answer is useful.

Thanks to both of you for your suggestions.