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Permeability tests were carried out on the samples collected from two different layers as shown in the figure (not drawn to the scale). The Relevant horizontal (kh) and vertical (kv) coefficients of permeability are indicated for each layer. The ratio of the equivalent horizontal to vertical coefficients of permeability is

Permeability tests were carried out on the samples collected from two different layers as shown in the figure (not drawn to the scale). The Relevant horizontal (kh) and vertical (kv) coefficients of permeability are indicated for each layer. The ratio of the equivalent horizontal to vertical coefficients of permeability is Correct Answer 37.29

Concept:

Consider a section of stratified soil as shown in the figure below of varying thickness of each stratum eg: H1, H2, H3 & H4, with their respective coefficient of permeability k1, k2, k3 & k4

Important Points

Horizontal permeability is always greater than vertical permeability.

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