Patent EP-2672013-A1 (EP)
Inventor: SCHALLEY WIM
IPC: E02D5/60
Filed: 2013-05-03
Abstract: A truncated elongated oval-shaped dry setting element having two truncated elongated oval-shaped ends one of which is open and the other submergible end is closed by a floor accommodating a U-shaped receiving collar, the opening between the ends of said truncated elongated oval-shaped dry setting element and the width of the U-shaped receiving collar being sufficient to accommodate a partially submerged isolated structure such that said U-shaped receiving collar is sealable under water against said isolated structure with a collar sealing element closing the U of said collar in the plane of the collar with said isolated structure in place, and the opening between the ends of the first truncated elongated oval-shaped dry setting element being closable with a closure, wherein said dry setting element comprises a U-shaped structure replicating the opening formed by said U-shaped receiving collar at a sufficient distance from said U-shaped receiving collar so as to receive said isolated structure without substantially reducing said dry working space and such that when secured in said U-shaped structure there is substantially no movement of the dry setting installation relative to said isolated structure once said isolated structure is in place; a dry setting installation (1) for generating a substantially dry working space for carrying out work on a partially submerged isolated structure, the dry setting installation (1) comprising a first truncated elongated oval-shaped dry setting element according to as disclosed above, which with said collar sealing element and said closure in place is capable of forming a cofferdam round said isolated structure; a process for treatment of a partially submerged isolated structure, said process comprising the steps of: the receiving of said isolated structure by a dry setting element according to claim 1, said isolated structure being arrested by the bottom of the U of said U-shaped receiving collar and the bottom of the U of the U-shaped structure replicating the opening formed by said U-shaped receiving collar of said dry setting element; securing said isolated structure in said U-shaped receiving collar by closing the U of said collar in the plane of said collar with a collar sealing element and securing said isolated element where said U-shaped structure engages with said isolated element; closing the opening between the ends of said truncated elongated oval-shaped dry setting element with a sealing closure thereby providing a dry setting installation; pumping the water out of said dry setting installation thereby providing a cofferdam round said isolated structure; cleaning said surface of said isolated structure; applying a curable adhesive coating to said isolated structure; curing said curable adhesive coating; filling said dry setting installation with water, removing said sealing closure and said collar sealing element and removing said isolated element from said dry setting element; and the use of the above-disclosed mobile dry setting installation for carrying out maintenance on partially submerged isolated structures.