Weight of Soil

Written by Jerry Ratzlaff on . Posted in Geotechnical Engineering

partially saturated soil 1Weight of Soil formulas

\(\large{ W_s =  \frac{ W }{ 1 \;+\; w }    }\)   
\(\large{ W_s =  \frac{ V_t \; \left( G_s \;+\; S \; e \right) \; \gamma_w  }{1 \;+\; e }   }\)  

Where:

 Units English Metric
\(\large{ W_s } \) = weight of soil \(\large{lbf}\) \(\large{N}\)
\(\large{ S }\) = degree of saturation \(\large{dimensionless}\)
\(\large{ G_s }\) = specific gravity of soil \(\large{dimensionless}\)
\(\large{ W } \) = total weight \(\large{lbf}\) \(\large{N}\)
\(\large{ V_t } \) = total volume of soil \(\large{ft^3}\) \(\large{m^3}\)
\(\large{  \gamma_w } \)  (Greek symbol gamma) = unit weight of water \(\large{lbf}\) \(\large{N}\)
\(\large{ e }\) = void ratio  \(\large{dimensionless}\)
\(\large{ w } \) = water content \(\large{dimensionless}\)

 

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Tags: Weight Equations Soil Equations Geotechnical Equations