Volume of Void

Written by Jerry Ratzlaff on . Posted in Geotechnical Engineering

partially saturated soil 1Volume of void, abbreviated as V_v, is the ratio of total volume of soil minus volume of solid soil.

 

Volume of Void formulas

\(\large{ V_v =  V_t - V_s  }\) 
\(\large{ V_v =  V_w + V_a  }\)
\(\large{ V_v =  \frac{ e \; V_t }{ 1 \;+\; e }  }\) 

Where:

 Units English Metric
\(\large{ V_v }\) = volume of void \(\large{ft^3}\) \(\large{m^3}\)
\(\large{ V_t } \) = total volume of soil \(\large{ft^3}\) \(\large{m^3}\)
\(\large{ e }\) = void ratio \(\large{dimensionless}\)
\(\large{ V_a } \) = volume of air \(\large{ft^3}\) \(\large{m^3}\)
\(\large{ V_s } \) = volume of solid soil \(\large{ft^3}\) \(\large{m^3}\)
\(\large{ V_w } \) = volume of water \(\large{ft^3}\) \(\large{m^3}\)

 

Related Volume of Void formulas

\(\large{ V_v = n \;  V_t }\) (porosity)
\(\large{ V_v = e \;  V_s }\) (void ratio)

Where:

\(\large{ V_v }\) = volume of void

\(\large{ n }\) = porosity

\(\large{ V_t } \) = total volume of soil

\(\large{ e }\) = void ratio

\(\large{ V_s } \) = volume of solid soil

 

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Tags: Equations for Volume Equations for Soil Equations for Geotechnical