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A 30kN drop hammer was used to drive a R.C pile. It has free fall of 2.0 m.The average penetration recorded in the last few blows is 6mm/blow.

Estimate the allowable load on pile according to Engineering news formula.

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Allowable Load on pile, $Q _{up}= {(WH)})/{(6(S + c))}$

Given Data:

W= 30KN ; H = 200cm; S = 0.6cm; c = 2.5cm

$Q_{up} = (30*200 )/(6*(2.5+0.6))$ =322.58KN

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