A precast concrete pile weighing 35 kN is driven by a drop hammer weighing 50 kN and having an effective fall of 100 cm. The average penetration under last 5 biows is 60 mm. The temporary elastic compression is 20 mm. Estimate the allowable load using Hiley formula. Take coefficient of restitution, e = = 0.4 and FOS = 3. Assume efficiency of %3D hammer 80%.

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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English
A precast concrete pile weighing
35 kN is driven by a drop hammer
weighing 50 kN and having an
effective fall of 100 cm. The average
penetration under last 5 blows
is 60 mm. The temporary elastic
compression is 20 mm. Estimate the
allowable load using Hiley formula.
Take coefficient of restitution, e = 0.4
and FOS = 3. Assume efficiency of
%3D
hammer 80%.
4ng 450 Ns lowered into a
be is at water surta L
ehed eountiaem
Transcribed Image Text:English A precast concrete pile weighing 35 kN is driven by a drop hammer weighing 50 kN and having an effective fall of 100 cm. The average penetration under last 5 blows is 60 mm. The temporary elastic compression is 20 mm. Estimate the allowable load using Hiley formula. Take coefficient of restitution, e = 0.4 and FOS = 3. Assume efficiency of %3D hammer 80%. 4ng 450 Ns lowered into a be is at water surta L ehed eountiaem
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