## Hydraulic Conductivity (Coefficient of Permeability) Formulas

## Hydraulic Conductivity (Coefficient of Permeability) Formulas

(OP)

How many formulas that exist to find the hydraulic conductivity value in falling head test? Especially if we do the permeability test on recompacted soil.

Thank you.

Thank you.

## RE: Hydraulic Conductivity (Coefficient of Permeability) Formulas

## RE: Hydraulic Conductivity (Coefficient of Permeability) Formulas

## RE: Hydraulic Conductivity (Coefficient of Permeability) Formulas

Remolded samples, in my opinion, are not real accurate. I sometimes push tubes to perform permeability testing on; however, it is difficult to obtain an 'undisturbed' sample of sandy material.

You can also find relationships for hydraulic conductivity for cohesive and granular soils in most geotechnical textbooks. These relationships use void ratio, and grain size and gradation to estimate the hydraulic conductivity. I would not use these for design though.

## RE: Hydraulic Conductivity (Coefficient of Permeability) Formulas

http://www.astm.org/Standards/D5084

## RE: Hydraulic Conductivity (Coefficient of Permeability) Formulas