PPT - Permeability of Soils Civil Engineering (CE) Notes | EduRev

Soil Mechanics

Civil Engineering (CE) : PPT - Permeability of Soils Civil Engineering (CE) Notes | EduRev

 Page 2


PERMEABILITY
Page 3


PERMEABILITY
What is permeability?
• Property of a soil which permits the flow of water
• Permeability is defined as the property of a porous
material which permits the passage or seepage of water
through its interconnecting voids.
• It is a very important Engineering property
gravels highly permeable
stiff clay                        least permeable
Page 4


PERMEABILITY
What is permeability?
• Property of a soil which permits the flow of water
• Permeability is defined as the property of a porous
material which permits the passage or seepage of water
through its interconnecting voids.
• It is a very important Engineering property
gravels highly permeable
stiff clay                        least permeable
Page 5


PERMEABILITY
What is permeability?
• Property of a soil which permits the flow of water
• Permeability is defined as the property of a porous
material which permits the passage or seepage of water
through its interconnecting voids.
• It is a very important Engineering property
gravels highly permeable
stiff clay                        least permeable
• Calculation of uplift pressure under hydraulic structure and
their safety against piping
• Ground water flow towards wells and drainage of soil
• Calculation of seepage through the body of earth dams and
stability of slopes
• Determination of rate of settlement of a saturated
compressible soil layer
Permeability through soil is important for the 
following engineering problems:
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