Method and device for environmentally friendly ramming under water

Abstract

The present invention relates to a method and a device for environmentally friendly ramming under water. To reduce the noise input under water, the machine and the material that is to be rammed are surrounded by a fixed flooded sleeve. The sleeve advantageously has a sandwich-like structure.

What is claimed is: 
     
         1 . Method for environmentally friendly driving, in particular by ramming piles or the like material to be rammed under water, characterized in that at least the material to be rammed is surrounded by at least one sound-insulating fixed sleeve flooded. 
     
     
         2 . Device, in particular a ram, for driving piles or the like material to be rammed or the like under water, characterized in that it is covered by a sound-insulating fixed sleeve that is flooded. 
     
     
         3 . Device according to  claim 2 , characterized in that the sleeve is embodied in a tubular manner, preferably with a circular cross section. 
     
     
         4 . Device according to  claim 2 , characterized in that the wall of the sleeve is made of a sound-insulating material. 
     
     
         5 . Device according to  claim 2 , characterized in that the material of the wall is embodied in an open-pore and/or closed-pore manner. 
     
     
         6 . Device according to  claim 2 , characterized in that the wall has a thickness that is less than a quarter of the sound wavelength, preferably in the order of magnitude of a quarter. 
     
     
         7 . Device according to  claim 2 , characterized in that the wall of the sleeve has an outer shell and preferably is connected thereto. 
     
     
         8 . Device according to  claim 2 , characterized in that the wall of the sleeve has an inner shell and is preferably connected thereto. 
     
     
         9 . Device according to  claim 2 , characterized in that the material and/or thickness of the inner shell and outer shell are embodied differently. 
     
     
         10 . Device according to  claim 2 , characterized in that the pores are filled with a gas and/or a liquid that is different from water. 
     
     
         11 . Device according to  claim 2 , characterized in that the sleeve comprises individual length sections that are preferably connected to one another in a telescoping manner and/or the sleeve is assembled from at least two segments divided in the axial direction. 
     
     
         12 . Device according to  claim 2 , characterized in that an upper end of the sleeve is embodied in a closed manner by means of a cover. 
     
     
         13 . Device according to  claim 2 , characterized in that the sleeve has at least one damping guide element for guiding a pile. 
     
     
         14 . Device according to  claim 2 , characterized in that at least one guide element is arranged outside a self-vibrating node of the pile. 
     
     
         15 . Device according to  claim 2 , characterized in that the machine and the sleeve are embodied as a unit to be handled jointly.