Drive the piles through soil with 50 blows/1” N values while protecting the adjacent parking lot from detrimental vibrations.

The entire driveline was pre-drilled with ASAP’s drill-Rig prior to the driving of sheet piles and soldier piles. In order to protect the existing parking garage, beam and lagging were used in lieu of sheet piles to minimize the vibration output while driving to minimum tip elevation. The driveline next to the existing structure had only a 10’-15’ offset from the outer face of the building. Nevertheless, the acceptable vibration threshold was never exceeded during the complete duration of driving.