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Immediate Settlement

Elastic settlement of shallow foundations — closed-form Mayne-Poulos and Schmertmann strain-influence integration.

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Results

Schmertmann settlement
Mayne-Poulos settlement
Recommended (lesser)
Method

Schmertmann (cohesionless): Δq = q − q0; S = C1·C2·Δq · Σ (Iz/Es)·Δz. With Iz peak ~0.5 (square) at z=0.5B, Iz=0 at 2B (square) or 4B (strip). Mayne-Poulos closed-form: S = (q·B·(1−ν²)/Es) · I, with I ≈ 0.85 for square, 1.0 for L=2B. C2 = 1 + 0.2·log10(t/0.1).