Pile with sound abatement

摘要

A noise-attenuating pile comprising a pile driving shoe, an outer tube that engages the pile driving shoe, and an inner member that extends through the outer tube and engages the pile driving shoe, wherein the pile is configured to be installed in sediment or other suitable material by driving the inner member with a pile driver, without directly impacting the outer tube, such that the radial outer tube is substantially insulated from the radial expansion waves generated by the pile driver impacting the inner member. In some piles, one of the inner member and the outer tube are removable after installation. In some piles, a seal is provided in a lower end of the channel defined between the inner member and the outer tube, which may be biodegradable, or may be an inflatable bladder, for example.

主权项

1. A pile configured for noise abatement during installation, the pile comprising:
a pile driving shoe; an outer tube having a first end fixed to the pile driving shoe such that the outer tube remains engaged with the pile driving shoe when the pile is driven into place, the outer tube having a distal end extending away from the pile driving shoe; an inner member disposed in the outer tube such that a proximal end of the inner member engages the pile driving shoe, thereby defining an annular channel between the outer tube and the inner member, wherein a portion of the inner member extends distally away from the distal end of the outer tube when the proximal end of the inner member engages the pile driving shoe; and an elastomeric annular seal disposed near a lower end of the annular channel and configured to seal a lower end of the annular channel; wherein the pile is configured to be driven into place by a pile driver impacting the inner member without impacting the outer tube.