1.

According to Rankine's formula, minimum depth of foundations, is

A. (P/w) × [(1 + sin φ)/(1 - sin φ)]²
B. (P/w) × [(1 - sin φ)/(1 + sin φ)]²
C. (P/2w) × [(1 - sin φ)/(1 + sin φ)]²
D. (P/w) × [(1 + sin φ)/(1 - sin φ)]
Answer» C. (P/2w) × [(1 - sin φ)/(1 + sin φ)]²


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