Dimension control process for single-point mooring cone structure prefabrication

Abstract

The invention discloses a dimension control process for a single-point mooring cone structure prefabrication. The process comprises the following steps of dividing the cone into three sections, dividing each section into a multi-section arc plate, and drawing longitudinal seam and annular seam distribution diagrams; blanking, rolling and forming; drawing a ground sample datum line, arranging and leveling the prefabricated cushion pier; sequentially welding the first section, the second section and the third section from bottom to top according to requirements; and cutting off and polishing allthe supporting pieces are after welding is completed, and structural prefabrication of the single-point mooring cone is completed. According to the dimension control process for the single-point mooring cone structure prefabrication, one-time high-precision prefabricating construction of the cone structure can be achieved, the extremely high size precision requirement of the single-point mooringsystem is met, and the problem that the construction precision of the single-point mooring structure is too high and difficult to achieve is solved; and rework caused by size out-of-tolerance is avoided, waste of resources is reduced, and the construction cost is reduced.

Description

technical field [0001] The invention relates to the technical field of marine engineering construction, in particular to a size control process for the prefabrication of a single-point mooring cone structure. Background technique [0002] Single point mooring system, as a mature offshore oil and gas production, processing, storage and transshipment technology, has been widely adopted. Different from conventional marine engineering modules or hull structures, due to the unique weathervane effect of the single point mooring system, its main body is mostly a large-diameter cone-shaped tower structure, and these cone structures have extremely high dimensional accuracy requirements. Therefore, the size control in the prefabrication process of the vertebral structure is the key point and difficulty in the construction of the single point mooring system. [0003] The traditional large-diameter vertebral structure prefabrication process is roughly divided into the following process...

AI Technical Summary

Problems solved by technology

In view of this, the present invention needs to provide a one-time high-precision prefabricated construction of the vertebral cylinder structure, which meets the extremely high dimensional accuracy requirements of the single-point mooring system, and solves the problem that the construc

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