An offshore floating island, comprising a supporting structure and an island main body, wherein
- the bottom of the supporting structure is fixed at the seabed, and the island main body comprises one or two or more compartment bodies;
- the upper part of the supporting structure is provided with a carrying part;
- the bottom of each compartment body is provided with a mounting part;
- the compartment body is of a cavity structure, and a filler is injected to the compartment body till the compartment body sinks to cause the mounting part to be in lock type clamping with the carrying part, so that the compartment body and the supporting structure are detachably connected;
- and each compartment body is at least partially higher than the sea surface after the compartment body and the supporting structure are assembled in place;
- wherein the supporting structure comprises an anchor rod and a hydraulic mechanism, wherein the upper ends of the anchor rod and the hydraulic mechanism are connected with the compartment bodies, and the lower ends of the anchor rod and the hydraulic mechanism are fixed at the seabed;
- the hydraulic mechanism comprises a shell and a hydraulic telescopic rod;
- the hydraulic telescopic rod is located in the shell, and a telescopic end of the hydraulic telescopic rod abuts against the bottoms of the compartment bodies to push the compartment bodies;
- the anchor rod is used to pull down the compartment bodies;
- and the anchor rod is provided with a buffer piece that telescopically deforms under the action of an external force;
- the supporting structure further comprises a protective housing;
- the protective housing covers the anchor rod and the hydraulic mechanism inside;
- the protective housing is a hood body of a corrugated structure and can telescopically deform under the action of the external force;
- wherein a submarine foundation is also arranged below the island main body;
- the submarine foundation comprises an outer shell and a ventilation pipeline;
- an independent foundation space is constructed in the outer shell;
- the ventilation pipeline is located in the supporting structure;
- the bottom end of the ventilation pipeline communicates with the foundation space, and the upper end of the ventilation pipeline extends to a position above the sea surface;
- a seabed fender wall exists at a periphery of the submarine foundation;
- the seabed fender wall is fixed at the seabed, and has a vertical height not less than that of the submarine foundation;
- and
- at least one side surface of the seabed fender wall facing away from the submarine foundation is an arc-shaped surface to buffer impact of seawater.