How much energy is needed to drive 12″ PEARSON PILES?
Typical driving forces for the 12″ diameter Pearson pile are usually around 15,000 ft/lbs to 50,000 ft/lbs. We have used higher energy levels without structural damage to the pile. Both impact and vibratory hammers are used without cushion material. If the composite pile is driven after complete refusal, there can be some localized damage at the top; similar to steel pipe piles, but generally a high number of blows is required.
