For Rankine's theory and a soil friction angle of 30 degrees, the passive earth pressure coefficient is approximately:
Correct answer: D. 3.00
- A. 0.33
- B. 1.00
- C. 2.00
- D. 3.00
Explanation
The Rankine passive coefficient is Kp = (1 + sin phi)/(1 - sin phi). For phi equal to 30 degrees, this gives 1.5 divided by 0.5, or approximately 3.00.
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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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