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Soil Mechanics and Foundation Engineering

Q1:

Darcy's law is applicable to seepage if a soil is

A homogeneous

B isotropic

C incompressible

D all the above.

ANS:D - all the above.

  1. Homogeneous: Darcy's law is applicable to homogeneous soils, where the properties such as porosity and permeability remain constant throughout the soil mass. Inhomogeneities can complicate the application of Darcy's law.
  2. Isotropic: Isotropy implies that the soil properties are the same in all directions. While Darcy's law can be applied to isotropic soils, anisotropic conditions may require modifications to the equation or additional considerations.
  3. Incompressible: Darcy's law assumes that the fluid flow is taking place in an incompressible medium. This is a reasonable assumption for most groundwater flow scenarios in soil, where the compressibility of the fluid and soil matrix is negligible.
Therefore, the correct statement regarding the applicability of Darcy's law to seepage in soil is: all the above. Darcy's law is applicable to homogeneous, isotropic, and incompressible soil conditions for analyzing groundwater flow and seepage phenomena.



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