The seepage velocity through a saturated soil is equal to the Darcy discharge velocity divided by the:
Correct answer: D. porosity
- A. hydraulic gradient
- B. coefficient of permeability
- C. specific gravity
- D. porosity
Explanation
Darcy discharge velocity is based on the total cross-sectional area, whereas actual water movement occurs through the voids. Therefore, seepage velocity is v divided by n, where n is porosity.
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About Soil Mechanics and Foundations
Soil mechanics examines index properties, phase relationships, classification, permeability, seepage, compaction, consolidation, shear strength and earth pressure. Foundations apply these principles to bearing capacity, settlement and shallow or deep foundation selection, with clear distinction between compaction, which expels air, and consolidation, which expels water over time.
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