Relating wave frequency and pore fluid homogeneity in quasi-saturated sands

P-wave velocity is regularly proposed as a proxy for water saturation when studying quasisaturated soils. However, several authors have underlined that this can only be reliably correlated to if the pore fluid “ homogeneous ”. Using bender elements measure compression wave in quasi-saturated Fontainebleau sand, we show it highly sensitive both and frequency. The characteristic length of pressure diffusion used explain link between frequency, gas distribution velocity. This criterion shown fairly reliable assessing homogeneity sand.