Dry Sand Infinite Slope Factor of Safety
Easyinfinite slopefactor of safety
For a dry cohesionless infinite slope, FS = tan φ / tan β. If φ = 32° and β = 24°, FS is most nearly:
- A0.71
- B1.40
- C1.00
- D2.13
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Answer: B. 1.40
FS = tan32°/tan24° = 0.625/0.445 = 1.40. Inverting the ratio gives 0.71.
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