Building Construction
Engineering news formula for obtaining safe bearing capacity of pile for drop hammer, is,

Q = Wh/6 (S + 2.5)
Q = (W × 6)/h (S + 2.5)
Q = Wh/2.5 (S + 6)
Q = (W × 2.5)/6 (S + h)

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Building Construction
In clay soil

Swelling and shrinkage characteristics prevail
Consolidation continues even after several years of construction
All listed here
Differential settlement is generally prevalent

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