Marine platform and manufacturing method with a prefabricated jacket that combines aluminum pipe-concrete concrete-steel pipe

摘要

【wrap up】 PROBLEM TO BE SOLVED: To provide an offshore platform using an assembling jacket combining an aluminum pipe-confined concrete-steel pipe and a method for manufacturing the same. SOLUTION: It is composed of a jacket and a platform, the platform is attached to the jacket, the jacket includes a conduit, a platform lateral support and a platform diagonal support, the conduit is installed vertically, and between the conduits, inside the platform. Each is provided with a plurality of platform lateral and platform diagonal supports, the tip of the conduit being connected to the platform, the bottom end of the conduit being fixed and connected to the seabed, the conduit comprising a plurality of interconnected conduit units. The conduit unit is an aluminum pipe-hollow double wall member of a confined concrete steel pipe. The present invention effectively avoids the complex process of hyperbaric welding and the safety risks due to insufficient welding strength. At the same time, the advantage of the prefabricated structure that it is easy to disassemble enables the reuse of the marine platform and realizes the assembly modularization of the marine platform structure. [Selection diagram] Fig. 1