| 摘要 |
There is disclosed an acoustic barrier (40) for use in a pile driving method in which a pile (10) is driven into the ground60, the acoustic barrier (40) comprising: an acoustic dampening layer (42); and a magnetic element (36); wherein the acoustic barrier (40) is arranged to be at least partly wrapped around an axial portion of the pile (10) so that the acoustic dampening layer (42) at least partly surrounds the axial portion of the pile (10), and wherein the magnetic element (36) is arranged to releasably secure the acoustic barrier (40) to the pile (10). There is also disclosed a pile driving method comprising wrapping the acoustic barrier (40) around an axial portion of a pile (10), driving an axial length of the pile (10) into the ground, and removing or repositioning the acoustic barrier (40). There is also disclosed an acoustic barrier for a pile driving hammer having a support frame which can be detachable attached to the hammer. |
