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The Fundamental Pile Driving Formula

Hammer Energy  Work of Soil Resistance
W hRs
RW h

Ws

h

R

S

 Pile driving formulae relate the ultimate
bearing capacity of driven piles to the final
set (i.e. penetration per blow).

 Various formulae have been proposed, such
as the Hiley Formula or Dutch Formula,
which are generally based on the principle
of conservation of energy.

 The inherent assumptions made in some
formulae pay little regard to the actual
forces which develop during driving, or the
nature of the ground and its behaviour.

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