Depth of foundation by Rankin's formula is
Ah = p/w [(1 - sinθ)/ (1 + sinθ)]²
Bh = w/p [(1 - sinθ)/ (1 + sinθ)]²
Ch = p/w [(1 + sinθ)/ (1 - sinθ)]²
Dh = p/w [(1 - sinθ)/ (1 + sinθ)]
Ah = p/w [(1 - sinθ)/ (1 + sinθ)]²
Bh = w/p [(1 - sinθ)/ (1 + sinθ)]²
Ch = p/w [(1 + sinθ)/ (1 - sinθ)]²
Dh = p/w [(1 - sinθ)/ (1 + sinθ)]
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