Unformatted text preview: 1 Plastic clav f = 0.4236*Ln(N) - 0.5404 2 Clay-silt-sand mixtures, very silty f = 0.029 + 0.045*N - 8.98(10-4)*N 2 + sand. silts and marls 6.371 (1 0·6)*N 3 3 Clean sands f = 0.2028*Ln(N) - 0.2646 4 Soft limestone, very f=0.01*N shelly sand Pile Capacity: Davisson's criteria is not used for this pile type because of the uncertainty of computing elastic settlement for a plugged pile. Instead the mobilized ultimate pile capacity is defined as an applied load at a settlement equal to three percent (3%) the diameter of the pile. The allowable pile capacity is equal to 1/2 the mobilized ultimate pile capacity. The ultimate pile capacity is determined as the ultimate side friction plus two (2) times the mobilized end bearing. It should also be noted that the pile weight is deducted from the total ultimate and failure capacities....
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- Fall '08
- 3%, Silt, ultimate pile capacity, mobilized unit end, mobilized ultimate pile