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Hiley Formula (Ultimate load capacity of pile)

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Hiley Formula

Ultimate load capacity of pile.

R = {(W*h)/(S+0.5*C)}*{(W+P*E/2)/(W+P)}

Where,
R : Ultimat load capacity of pile (kN)
W : The weight of the ram (kN)
h : The height of the free fall of the ram or hammer (mm)
S : The final set or penetration per blow (mm)
C : The sum of the temporary elastic compressions of the pile (mm)
P : The weight of the pile, anvil, helmet and follower (if any) (kN)
E : The coefficient of restitution of the materials under impact


*** Âü°í¹®Çå[References] ***

CIVIL ENGINEERING CODE OF PRACTICE No. 4 (1954) U.D.C. 624.15
R = {(W*h)/(S+0.5*C)}*{(W+P*E^2)/(W+P)}
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