CFI's Driven Pile Academy: Hosted by the PDCA

Net measured efficiencies (steel piles)

0% 20%

80% 100%

40%

60%

Air/Steam Hammers Hydraulic Hammers

60%

100%

40%

70%

Drop Hammers Diesel Hammers

30%

60%

20%

80%

Efficiencies on concrete piles are lower ~ 10%

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