A device and method for measuring the inclination angle of jacket platform structure

Abstract

The invention discloses a measuring apparatus and method for the inclination angle of a jacket platform, which belongs to the field of marine technology. The measuring apparatus for the inclination angle of the jacket platform comprises a top disc, a hemispherical shell and a suspension cable, wherein the top disc is a cylinder, the lower surface of the top disc is fixedly connected with a three-legged support with a downward apex which is located on a central vertical line of the top disc, one end of the suspension cable is fixedly connected with the apex of the three-legged support, the other end of the suspension cable is connected with a suspension bracket in fixed connection with the hemispherical shell, the interior surface of the hemispherical shell is marked with latitude and longitude, and a laser transmitter is arranged at the circle center of the lower surface of the top disc. The measuring apparatus provided by the invention has the beneficial effects of capacity of faster and more accurate measurement of the inclination angle of an offshore jacket platform, low price, convenience in installation, accuracy in inspection, simple structure and good universality.

Description

Technical field [0001] The invention belongs to the technical field of marine equipment, and specifically relates to a device and a measuring method for measuring the inclination angle of a jacket platform structure. Background technique [0002] Whether the structural strength of the offshore platform can meet the safety requirements is the decisive condition for the extension of the platform. Evaluating the strength of the platform structure requires modeling based on the tilt direction and angle of the platform. The main elevation, water depth measurement and tilt analysis report of the existing offshore platform structure can only detect the tilt of the wellhead platform to a certain point (see figure 1 , Table 1), the specific direction and angle of platform tilt cannot be provided. This may result in the inaccuracy of the basic data during platform modeling, which may affect the life extension assessment of the platform structure in the next step. [0003] As attached figur...

AI Technical Summary

Problems solved by technology

The main elevation, bathymetry and inclination analysis report of the existing offshore platform structure can only measure the inclination of the wellhead platform to a certain point (see figure 1 , Table 1), the specific direction and angle of platform inclination cannot be provided

This may cause inaccurate basic data during platform modeling and affect the next life extension evaluation of the platform structure

[0003] as attached figure 1 , Table 1 shows that the wellhead platform 4 # The lowest point is 6.462m; 1 # The highest point is 6.489m, and the platform faces 4 # The direction of the point is tilted, but the exact direction and specific angle of the platform tilt cannot be expressed

Or the angle of inclination can be calculated mathematically from the measured elevation, but the process is extremely complicated

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