A method for creating a protective device for which is located at the bottom of structures, in particular in the pipelines

摘要

The protection is for structures which rest on the sea bed such as pipe-lines. The structure has a lengthways running strip shaped covering of reinforced concrete which is lowered over the structure. The covering is produced by spraying non-set concrete from a vehicle which is moved along the structure to be covered. The spraying takes place over an outlet surface which extends downwards into the water. The concrete is encased by a tubular fabric (15) or a corresponding foil. Simultaneously with the spraying of the concrete, an elastic reinforcing skeleton is rolled out in track shape. A reinforcing skeleton is introduced into the concrete and has several inter-anchored reinforcing networks which can absorb the internal pressure in the concrete during laying.