DOUBLE PIPE USING BUOYANCE BODY MODULE

The present invention provides a buoyancy body module using a double tube, which constructs the buoyancy body with a double tube structure to protect an inner tube of the buoyancy body, maintains buoyancy even if flooding occurs within an outer pipe of the buoyance body, and firmly fixates the buoyancy body at a base frame. According to a proper embodiment of the present invention, the buoyancy module comprises: a double tube buoyancy body having the outer tube of the buoyancy body with a cylindrical shape and a regular length, the inner tube of the buoyancy body installed within the outer pipe of the buoyancy body, and a sealing lid bonded at both ends of the outer pipe of the buoyancy body to block water leak and water intrusion; one or more connection members positioned at both ends of an upper part of the outer tube of the buoyancy body; a buoyancy body fixating unit for fixating the double tube buoyancy body at the connection members; and a base frame connected to the connection members and supported by a plurality of double tube buoyancy bodies.