Building method for offshore platform

Abstract

The invention relates to the technical field of offshore platforms, in particular to a building method for an offshore platform. The building method for the offshore platform includes the steps that auxiliary equipment is installed on a to-be-hoisted pile leg section on a base face; the pile leg section and the auxiliary equipment which are assembled together are hoisted to the top of a former pile leg section; and the bottom end of the pile leg section and the top end of the former pile leg section are installed and fixedly connected. Through application of the method, the auxiliary equipment is installed on the corresponding to-be-hoisted pile leg section on the operating base face, and then the pile leg section and the auxiliary equipment which are fixedly connected are integrally hoisted and installed. Compared with an installation method in the prior art that one pile leg section is hoisted to a high position higher than the base face and the auxiliary equipment is installed on the pile leg section at the high position, the operating convenience and efficiency of the building method for the offshore platform are remarkably improved.

Description

technical field [0001] The invention relates to the technical field of offshore platforms, in particular to a construction method of an offshore platform. Background technique [0002] Drilling and personnel placement at sea require the application of offshore platforms. During the construction of offshore platforms, multiple sections of pile legs need to be assembled in sections. At present, the requirements for work convenience and operation efficiency in the process of building offshore platforms are getting higher and higher. Therefore, improving the work convenience and operation efficiency of building offshore platforms has become the design goal. [0003] In the prior art, in the process of building an offshore platform, a single integral leg needs to be assembled in sections, from the bottom to the upper part, with the former leg in a vertical state, the latter leg is hoisted on the The top of the previous section of pile legs, and then according to the work require...

AI Technical Summary

Problems solved by technology

[0003] In the prior art, in the process of building an offshore platform, a single integral leg needs to be assembled in sections, from the bottom to the upper part, with the former leg in a vertical state, the latter leg is hoisted on the The top of the previous section of pile legs, and then according to the work requirements, it is necessary to lift the vertical pile legs along this to install the scaffold and heavy-duty platform. However, after each section of pile legs is hoisted, the scaffold and heavy-duty The operation of the platform requires the staff to be carried out at a high position. During the construction process, additional components such as horse boards and eye rings need to be welded on the leg structure for support and fixation, which will result in additional welding and carbon planing work

Any additional welding and charcoal planing operations on the legs will affect its accuracy, and it is difficult to perform scaffolding in an upright state after the legs are mounted, which is not conducive to the convenience of operation and low operating efficiency

[0004] In the above prior art, defects such as convenient operation and low efficiency during the construction of the offshore platform are technical problems that need to be solved by those skilled in the art

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