Typical Values of Permeability for Different Soils

21st April 2020 0 By Malay Sautya

Typical Values of Permeability for Different Soils

The permeability or coefficient of permeability can be defined as the rate of flow of water through a unit cross-sectional area of the soil under a unit hydraulic gradient at a temperature of 10^{\circ}C. Typical values of permeability or coefficient of permeability for different soils are as follows:

Sl. No.Different Types of SoilTypical Value of Permeability
1.Gravel101 to 1 (100)
2. Coarse sand100 to 10-1
3.Medium sand10-1 to 10-2
4. Fine sand10-2 to 10-3
5.Silty sand10-3 to 10-4
6.Delhi silt7 X 10-5
7. Boston blue clay6 X 10-7
8.London clay1.5 X 10-9

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