초록 ▼

A method of installing a floatable or buoyant body on the sea floor includes towing the body to an installation site at the sea surface and subsequently submerging the body towards the sea floor by supplying ballast to the buoyant body. The supply of ballast is discontinued when the buoyant body rea

A method of installing a floatable or buoyant body on the sea floor includes towing the body to an installation site at the sea surface and subsequently submerging the body towards the sea floor by supplying ballast to the buoyant body. The supply of ballast is discontinued when the buoyant body reaches a preselected sinking velocity and the vertical movement of the buoyant body is discontinued at a predetermined level above the sea floor by a floating vessel or the like which is floating at the sea surface. One end of the vessel is connected to the buoyant body by a connector system, the length of which is smaller than the sea depth at the installation site. The buoyant body is displaced laterally to a preselected final location, whereafter the buoyant body is further submerged towards the sea floor until the same is positioned on the sea floor at a preselected installation site.

대표청구항 ▼

A method of installing a ballastable buoyant body, at a preselected installation site on the sea floor, said method comprising: towing the buoyant body to a surface position located on the surface of the sea; providing a floating vessel having a buoyancy that is sufficient to arrest the sinking of t

A method of installing a ballastable buoyant body, at a preselected installation site on the sea floor, said method comprising: towing the buoyant body to a surface position located on the surface of the sea; providing a floating vessel having a buoyancy that is sufficient to arrest the sinking of the buoyant body in the sea when the buoyant body is sinking at a predetermied velocity; connecting the floating vessel to said buoyant body with a flexible connector system having an effective length with tensioed, said effective length and the height of the buoyant body being less than the depth of the sea at the installation site; supplying ballast to the buoyant body when at the surface position to cause the buoyant body to sink; disconnecting the supply the ballast to the buoyant body after the buoyant body has been connected to the floating vessel and when the buoyant body begins sinking at said predetermined velocity so that the floating vessel arrests the sinking of the buoyant body at a preselected level above the sea floor; displacing the buoyant body laterally, at the preselected level, to the extent necessary to position the buoyant body at said preselected level directly above the installation site; and maintaining the connection of the vessel to the buoyant body and, with the vessel so connected to the buoyant body, supplying ballast to at least one of said buoyant body and said floating vessel when the buoyant body is positioned directly above the installation site to overcome the buoyancy of the vessel and sink the buoyant body to the installation site with said connector system connecting said vessel to said buoyant body.