The allowable bearing capacity of a shallow foundation is commonly obtained by dividing the ultimate bearing capacity by the:
Correct answer: A. Factor of safety
- A. Factor of safety
- B. Coefficient of permeability
- C. Degree of saturation
- D. Plasticity index
Explanation
The factor of safety provides a margin against uncertainty in soil strength, loading and construction conditions. Allowable capacity is therefore based on the ultimate capacity divided by this factor.
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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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