| 20120107054 | BASE STRUCTURE FOR OFF-SHORE WIND TURBINES WITH NOISE REDUCTION - The invention relates to a base structure for an off-shore wind power installation having preferably three base piles, each of which is of a length such that when installed at an installation location it extends from a seabed to above a sea level, wherein the base pile has a driving pile which is guided in its interior at least portion-wise for anchoring in the seabed, and at least one support structure for mounting the wind power installation. Furthermore at least a portion of the base pile has a wall comprising a plurality of layers, wherein there is provided al least an inner layer and an outer layer, between which, is arranged at least one intermediate layer which has a sound-reducing core material, in particular concrete. The invention also relates to a method and an apparatus of reducing noise emissions when erecting a base structure. | 05-03-2012 |