Which of the following assumption is correct for general flow equation for soil ?
A. Flow is laminar and follows Darcy's law.
B. Soil medium is unsaturated, compressible and homogeneous.
The general flow equation for seepage through soil is derived using Darcy's Law and the continuity equation.
The assumptions commonly used in its derivation are:
1. The soil is fully saturated.
2. The soil medium is homogeneous and isotropic.
3. The soil and water are incompressible.
4. The flow is laminar and obeys Darcy's Law.
For the steady-state flow equation, flow conditions do not change with time.
Statement A: Flow is laminar and follows Darcy's law.
Correct – Darcy's Law is valid for laminar flow through soil.
Statement B: Soil medium is unsaturated, compressible and homogeneous.
Incorrect – The classical steady-state seepage equation assumes a fully saturated, incompressible
soil medium. Although homogeneity is a valid assumption, the other two conditions are incorrect
Practice more questions and improve your performance with Zone Tech.
Access live classes, recorded lectures, quizzes and test series from your mobile.
